Ultimate Science Hobby Finds

Robot Arm Motor - DM2325 Brushless Planetary Gear Servo Motor

$123.14

~~$153.92~~-20%

Robot Arm Motor - ASMC-LQ ASME-SQ 60/70/120KG Worm Gear Reduction

$32.29

~~$37.99~~-15%

Robot Arm Motor - 5KG Digital Servo Motor Geekservo 6V

$14.71

~~$24.52~~-40%

Robot Arm Motor - Feetech 7.4V 19KG ST-3215 Serial Bus

$14.68

~~$17.27~~-15%

Robot Arm Motor - 35KG Robot Digital Servo 4.8-6.8V High

$18.93

~~$23.09~~-18%

Robot Arm Motor - MG4010E-i36 v3 New arrival dual encoders

$288.73

~~$307.16~~-6%

Robot Arm Motor - Brushless Motor 180° Metal Gear High

$27.69

~~$95.50~~-71%

Robot Arm Motor - OEM Robot Wrist Joint Motor 24V

$360.12

~~$423.67~~-15%

Robot Arm Motor - 25KG Robot Digital Servo High Torque

$16.31

~~$17.17~~-5%

Robot Arm Motor - Electric Mechanical Gripper, Unmanned Aerial Vehicle

$59.06

Robot Arm Motor - 4pcs Micro Servo Metal Gear 90

$5.85

~~$9.01~~-35%

Robot Arm Motor - Feetech 30KG High-Torque STS3215 Smart Servo

$11.74

~~$26.65~~-56%

Robot Arm Motor - Robot Joint Module Servo Motor With

$1061.94

~~$1166.97~~-9%

Robot Arm Motor - Maxwave Precision Robotic Arm – 6-Axis

$410.00

~~$500.00~~-18%

Robot Arm Motor - Feetech STS3215 19KG 7.4V Gear Ratio

$145.42

~~$341.86~~-57%

Robot Arm Motor - Intelligent Red Industrial Robot Arm 6-Axis

$25861.54

~~$26122.77~~-1%

Robot Arm Motor - CubeMars RI75-PH Frameless Inrunner High Torque

$131.25

~~$144.23~~-9%

Robot Arm Motor - 12PCS Feetech STS3215 19KG 7.4V 360

$207.14

~~$258.92~~-20%

Robot Arm Motor - Plastic Robot Arm Interactive Grabbing Tool

$12.62

Robot Arm Motor - GIM6010-8 Micro Planetary Reducer Motor DC

$62.34

Robot Arm Motor - MIT driven brushless servo motor, 20N.M-40N.M

$476.45

~~$595.56~~-20%

Robot Arm Motor - 5pcs SG90 9G Servo Motors +

$14.20

~~$88.77~~-84%

Robot Arm Motor - DAMIAO DM-J6248P-2EC Industrial Control Harmonic Drive

$431.06

~~$538.83~~-20%

Robot Arm Motor - Custom Precise 90mm Steel Reduction Motor

$574.50

~~$709.26~~-19%

Robot Arm Motor - DS3225 Pro 25kg Coreless Digital Servo

$29.00

~~$63.04~~-54%

Robot Arm Motor - 60/80/150/160KG DS5160 DS5180 DS51150 DS51160 Digital

$26.88

~~$31.62~~-15%

Robot Arm Motor - Industrial Welding Robotic Arm Controller, No-code

$532.71

~~$665.89~~-20%

Robot Arm Motor - 20KG TD-8120MG Large Torque Standard Digital

$17.06

~~$37.09~~-54%

Robot Arm Motor - Feetech SM-2930-C001 24V 30kg.cm 124RPM RS485

$70.95

~~$77.97~~-9%

Spectroscope Handheld - 1pc Beam Splitter Heavy-Duty Handheld Spectroscopic

$47.93

~~$73.74~~-35%

Spectroscope Handheld - Infrared oil meter hand-held animal and

$4451.62

~~$5935.50~~-25%

$Spectroscope Handheld - Pocket Diffraction Spectroscope Handheld Spectroscope Light$

Spectroscope Handheld - Pocket Diffraction Spectroscope Handheld Spectroscope Light

$6.14

~~$11.16~~-45%

Spectroscope Handheld - Large edge spectroscope handheld spectrometer identification

$59.30

Spectroscope Handheld - Professional Handheld Gemology Spectroscope 55mm, Aluminum

$42.88

~~$47.12~~-9%

Spectroscope Handheld - Efficient 2Pc Handheld Spectroscope Light Emission

$11.15

~~$21.44~~-48%

Spectroscope Handheld - HP350B Handheld Blue Light Spectroscopic Spectrometer

$2890.67

Spectroscope Handheld - HP350B Handheld Blue Light Spectroscopic Spectrometer

$2055.86

Spectroscope Handheld - HP350B Handheld Blue Light Spectroscopic Spectrometer

$2455.52

Spectroscope Handheld - Hot sale Gemstone Calcite Trichoic Gem

$73.09

~~$80.32~~-9%

Spectroscope Handheld - Gem Handheld Grating Spectroscope FGS-1 with

$106.53

~~$114.55~~-7%

$Spectroscope Handheld - Dichroscope For Gem Calcite Dichroscope Diffraction$

Spectroscope Handheld - Dichroscope For Gem Calcite Dichroscope Diffraction

$26.27

~~$27.65~~-5%

Spectroscope Handheld - Black Handheld Direct View Gem Grating

$33.00

~~$63.46~~-48%

$Spectroscope Handheld - ~Latest Model Small Diffraction Spectroscope Gemstone$

Spectroscope Handheld - ~Latest Model Small Diffraction Spectroscope Gemstone

$27.13

~~$48.45~~-44%

Spectroscope Handheld - Handheld direct-looking gem grating spectrometer small

$36.51

~~$39.69~~-8%

Spectroscope Handheld - Handheld Gem Spectroscope Dichroscope GH Jade

$89.78

~~$183.23~~-51%

Spectroscope Handheld - Handheld Vision Spectroscope Light Emission Spectroscopy

$4.48

~~$7.47~~-40%

$Spectroscope Handheld - Durable Diffraction Spectroscope Grating Gem Tool$

Spectroscope Handheld - Durable Diffraction Spectroscope Grating Gem Tool

$21.67

~~$25.50~~-15%

Spectroscope Handheld - Hand-held spectroscope Handheld spectroscope Physics experimental

$11.12

~~$11.35~~-2%

Spectroscope Handheld - Handheld Prism Spectroscope / Gem Testing

$106.38

~~$129.03~~-18%

Spectroscope Handheld - NOCM Gemstone Identification with the Handheld

$57.95

~~$85.22~~-32%

Spectroscope Handheld - A22I Gemstone Calcite Dichroscope Trichoic Gem

$27.85

~~$63.30~~-56%

Spectroscope Handheld - Gem Handheld Adjustable Prism Spectroscope for

$117.93

~~$126.81~~-7%

Spectroscope Handheld - Professional 55mm Handheld Spectroscope Gemstone Diamond

$25.77

~~$35.30~~-27%

Spectroscope Handheld - Handheld Big Prism Spectroscope Gemstone 130mm

$45.81

~~$53.90~~-15%

Spectroscope Handheld - ABFKW Gemstone Calcite Dichroscope Trichoic Gem

$28.27

~~$58.90~~-52%

$Spectroscope Handheld - Small Diffraction Spectroscope Gemstone Gemological Length$

Spectroscope Handheld - Small Diffraction Spectroscope Gemstone Gemological Length

$26.77

~~$46.96~~-43%

Spectroscope Handheld - Handheld Gem Grating Spectrometer Small Spectroscopic

$44.58

~~$52.45~~-15%

Spectroscope Handheld - Mini Spectroscope Physics Educational Equipment Spectroscopy

$6.98

~~$12.46~~-44%

Spectroscope Handheld - Color Measurement Handheld Spectroscope Portable Spectrophotometer

$8198.87

Science And Invention - DIY Doodle Robot Technology Small Inventions

$3.69

~~$4.50~~-18%

Science And Invention - 1Set Intelligent Sensor Trash Can DIY

$17.67

~~$36.06~~-51%

Science And Invention - Science experiment set, children's technology production

$34.09

~~$36.60~~-7%

Science And Invention - Children's Puzzle Assembled Catapult Model Toy

$4.90

~~$5.00~~-2%

Science And Invention - Wood Mechanical Building Toys Small Inventions

$16.32

~~$34.72~~-53%

Science And Invention - DIY Educational Toys, Hydraulic Loader Small

$12.00

~~$22.65~~-47%

Science And Invention - Stirling engine model, power physics popular

$70.29

~~$99.00~~-29%

Science And Invention - Diy Wooden Handmade Toy Mechanical Password

$7.72

Science And Invention - Criminologist Produces: 1926 Patent Fingerprint Fingerprint.

$3.06

~~$5.46~~-44%

Science And Invention - Science Experiment Set Handmade Materials Children's

$4.91

~~$5.99~~-18%

Science And Invention - Science Invention Experiment Material Kids Toys

$5.75

~~$11.74~~-51%

Science And Invention - Comics Are The Best in China,

$12.36

~~$27.47~~-55%

Science And Invention - STEM 3D Assembly Magdeburg Hemisphere Kids

$7.99

~~$17.01~~-53%

Science And Invention - Solar Wind Car Technology Small Production

$4.42

~~$5.74~~-23%

Science And Invention - Air Single Cylinder Stirling Engine Generator

$37.27

~~$93.17~~-60%

Science And Invention - Creative Solar Car Technology Small Production

$4.25

~~$5.12~~-17%

Science And Invention - Two Cylinder Stirling Engine Model Generator

$61.45

~~$138.45~~-56%

Science And Invention - 1set Pulley block physical science experimental

$10.07

~~$10.28~~-2%

Science And Invention - For Toy Model Science Small Production

$40.69

~~$90.43~~-55%

Science And Invention - Student Science Experiment Rainbow Ferris Wheel

$1.83

~~$1.87~~-2%

Science And Invention - Paper bridge handmade DIY science and

$2.99

~~$3.05~~-2%

Science And Invention - STEAM DIY Toys Robot Insect Science

$13.39

~~$15.75~~-15%

Science And Invention - DIY Tensile Structure Physics Science Experiment

$0.55

~~$0.60~~-8%

Science And Invention - Student science experiment homemade electric fan

$3.47

~~$3.54~~-2%

Science And Invention - Magdeburg Hemispheres DIY Physical Science Experiments

$3.63

Science And Invention - Early Learning DIY Doodle Robot Technology

$4.53

~~$4.74~~-4%

Science And Invention - Magdeburg Hemispheres DIY Physical Science Experiments

$3.82

~~$3.95~~-3%

Science And Invention - Light Reflex Experiment DIY Handmade Invention

$4.85

~~$4.98~~-3%

Science And Invention - Assembly Racing Science Small Manufacturing Invention

$5.06

~~$12.09~~-58%

Science And Invention - DIY Cable Car Model Kit, Science

$25.37

~~$27.34~~-7%

Science Project Toys Making - Science Experiment Toy DIY Technology Project

$7.46

~~$22.59~~-67%

Science Project Toys Making - R6FD Fiber Optical Light Kits For

$1.13

~~$1.79~~-37%

Science Project Toys Making - Bamboo Cicada Sound Making Toy DIY

$1.16

~~$1.42~~-18%

Science Project Toys Making - DIY Wooden Model Set Science Kit,Mechanical

$5.94

Science Project Toys Making - DIY Making Rocket Model Toy 3D

$5.19

~~$5.41~~-4%

Science Project Toys Making - Wooden Satellite Model Making Set Hand

$8.89

~~$16.46~~-46%

Science Project Toys Making - DIY Wooden Periscope Making Kit Kids

$4.70

~~$10.65~~-56%

Science Project Toys Making - DIY Cloud Lamp Science Experiment Kit

$9.81

~~$20.44~~-52%

Science Project Toys Making - 54DA DIY Strongbox Making Kits Science

$3.55

~~$6.97~~-49%

Science Project Toys Making - Ultrasonic Radar Scanning Module For Arduino

$78.35

~~$159.89~~-51%

Science Robotics - 12-in-1 Solar Robot Educational Toy Kit

$24.64

~~$57.29~~-57%

Science Robotics - 2026 NEW Children's Toys Robot Car

$17.68

~~$44.05~~-60%

Science Robotics - 2 DOF Robotic Pan And Tilt

$6.40

~~$15.35~~-58%

Science Robotics - AI Smart Robot Dog, Voice &

$39.51

~~$90.85~~-57%

Science Robotics - DIY Assembly RC Robot Dog Toy

$5.72

~~$11.67~~-51%

Science Robotics - BBC Microbit V2 Building Block Robot

$61.39

Science Robotics - Drink Water Reminder Robot Handmade Science

$51.53

~~$112.03~~-54%

Science Robotics - In Stock Transformers Toy Masterpiece MP-33

$41.64

~~$61.23~~-32%

Science Robotics - Transformation MasterPiece KO MP-33 MP33 Inferno

$55.09

~~$125.19~~-56%

Science Robotics - Technical Programming Hexapod Robot Science Fiction

$62.24

~~$152.82~~-59%

Science Robotics - Transformation MasterPiece KO MP-12 MP12 Sideswipe

$32.76

~~$75.83~~-57%

Science Robotics - Kids Science Technology Small Production Stroll

$4.03

~~$5.24~~-23%

Science Robotics - Solar Robot Building Blocks 12 In

$21.43

~~$44.65~~-52%

Science Robotics - Leo 2026 New Ai Smart Remote

$56.81

~~$126.25~~-55%

Science Robotics - Ai Smart Robot Speaker Ai Large

$45.08

~~$95.91~~-53%

Science Robotics - Technical Programming Hexapod Robot Science Fiction

$57.74

~~$136.60~~-58%

Science Robotics - In Stock Transformers Masterpiece MP-52 KO

$79.83

~~$117.40~~-32%

Science Robotics - TAKARA TOMY KO Transformers MasterPiece MP

$27.62

Science Robotics - 13 in 1 Solar Powered Robot

$13.81

~~$14.54~~-5%

Science Robotics - 5Pcs Stem Mechanical Arm Robot Hand

$16.85

Science Robotics - LDCX LAB ArtVerse Surprise Blind Box

$12.26

~~$35.62~~-66%

Science Robotics - Apitor Mini Robot Wheels Coding Robot

$50.58

~~$123.17~~-59%

Science Robotics - 12 in 1 Science Experiment Solar

$24.43

~~$26.85~~-9%

Science Robotics - 2026 New Ai Intelligent Smart Robot

$52.36

~~$124.65~~-58%

Science Robotics - AA98 Change Direction Balance Robot Technology

$8.84

~~$17.69~~-50%

Science Robotics - Arduino All-Metal 3 Dof Air Pump

$226.21

~~$238.12~~-5%

Science Robotics - Jinbao Devastator Update Kit Parts Ver

$23.14

Science Robotics - Transformation MasterPiece KO MP-28 MP28 Hot

$38.68

~~$75.85~~-49%

Science Robotics - Apitor STEM Toys for Girls Gifts

$39.41

~~$44.00~~-10%

Science Robotics - Classic Star Fighter Plane Aircraft Spacecraft

$8.64

~~$17.29~~-50%

$Skywatcher Telescope Evostar - SkyWatcher original Evostar 72ED Apo Refractor$

Skywatcher Telescope Evostar - SkyWatcher original Evostar 72ED Apo Refractor

$730.10

Fossil Replica Display - 2120 Archaeopteryx Fossil Art Wall Decor

$476.65

~~$953.30~~-50%

Science Project - STEM Educational Physics Experiment Demonstration Kit

$4.78

~~$12.36~~-61%

Science Project - HUAHUABuild Your Own Carousel Educational Toy

$6.91

~~$14.11~~-51%

Science Project - Educational Rope-and-Pulley Model Of A Car

$3.33

~~$4.63~~-28%

Science Project - Kids DIY Science Toys Educational Scientific

$5.23

~~$11.87~~-56%

Science Project - Scientific Experiment Archimedes Water Wheel Children's

$2.67

~~$3.47~~-23%

Science Project - 112pcs DC Motor Kit Electric Mini

$9.03

Science Project - DIY 3D Holographic Projector Kit for

$4.27

~~$9.70~~-56%

Science Project - Handmade Hydraulic Excavator DIY Student Technology

$5.31

~~$5.45~~-3%

Science Project - DIY Solar Satellite Artificial Assembly Kid

$6.82

~~$14.21~~-52%

Science Project - Electric Ball Pitching Machine Kits DIY

$4.32

~~$11.16~~-61%

Science Project - DIY Solar Satellite Artificial Assembly Kid

$7.40

~~$15.42~~-52%

Science Project - Solid Wood Insect Specimen Display Box

$26.62

~~$53.24~~-50%

Science Project - Mini DIY Hand Crank Generator Light

$6.32

~~$14.32~~-56%

Science Project - Children's 3D Stickers, 10 Random Sheets,

$5.09

~~$11.88~~-57%

Science Project - DIY Mini Hand Generator DIY Science

$4.67

~~$10.18~~-54%

Science Project - 2Pcs Stem Science Educational DIY Catapult

$9.51

Science Project - STEM Physics Kit – 12-in-1 Anti-Gravity

$18.47

~~$41.34~~-55%

Science Project - Crossfire Physics Circuit Kit Stem Educational

$7.43

Science Project - Kids Puzzle Gears No. 1 Science

$4.72

~~$6.56~~-28%

Science Project - STEM Rubber Band Powered Airplane Kit,

$20.24

~~$24.99~~-19%

Science Project - Science Project for Kids Science Experiment

$10.27

Science Project - 3D Stickers for Kids, Disposable, Handmade

$5.65

~~$11.53~~-51%

Science Project - DIY Physical Production Physical Model Assembly

$8.23

Science Project - Wireless Control Model Kit Mechanical Parking

$10.82

~~$24.05~~-55%

Science Project - 1Set Wooden Glider Plane DIY Science

$6.45

Science Project - Wireless Control Model Kit STEM Parking

$11.83

~~$18.48~~-36%

Science Project - DIY Wooden Science Project Model Kit

$5.55

Science Project - 1Set Solar Windmill Assembly Science Kit

$7.87

Science Project - DIY Trap for Mice Wood Model

$11.94

~~$24.87~~-52%

Volcano Kit Eruption - Science Exploring Toys Chemistry Learning Volcano

$3.92

~~$4.14~~-5%

Volcano Kit Eruption - 2Pcs Disaster Simulation Science Kit Realistic

$30.42

Volcano Kit Eruption - Plastic Volcano Shell and Base Set

$2.35

~~$2.45~~-4%

Volcano Kit Eruption - V6 Volcano Hot End Eruption Pack

$3.36

~~$3.54~~-5%

Volcano Kit Eruption - 10Pcs High-Quality Volcano Science Kit for

$16.52

Volcano Kit Eruption - 1 Set Volcano Eruptions Experiment Science

$10.94

Volcano Kit Eruption - 1Pc Science Exploring Toys Chemistry Learning

$5.21

~~$10.64~~-51%

Volcano Kit Eruption - 3Pcs Volcano Science Kit Realistic Eruption

$4.43

Volcano Kit Eruption - Ever Moment Home Decor Scenic Volcano

$17.05

~~$43.72~~-61%

Volcano Kit Eruption - 10 Pcs Volcano Model Accessories Large

$14.01

~~$14.75~~-5%

Volcano Kit Eruption - Realistic Mini Volcano Dinosaur Playset Erupting

$5.76

~~$10.47~~-45%

Volcano Kit Eruption - Realistic DIY Electric Volcano Eruptions With

$12.28

Volcano Kit Eruption - 6Pcs Volcano Science Eruption Props Realistic

$10.67

Volcano Kit Eruption - 5D DIY Large Diamond Painting Amazing

$6.86

~~$9.80~~-30%

Volcano Kit Eruption - Dinosaur Toilet 5D Diamond Painting Kit

$6.18

~~$14.02~~-56%

Volcano Kit Eruption - Rainbow Science Experiment Kit for Children

$12.33

~~$14.68~~-16%

Volcano Kit Eruption - 5D DIY Large Diamond Painting Amazing

$9.01

~~$14.30~~-37%

Volcano Kit Eruption - STEM 3D Assembly Undersea Volcano Eruption

$7.42

~~$15.79~~-53%

Volcano Kit Eruption - 10Pcs Volcano Mold Erupting Volcano Science

$16.85

Volcano Kit Eruption - Volcano Eruptions DIY Plastic Volcano Science

$7.34

~~$17.48~~-58%

Volcano Kit Eruption - EverShine DIY Diamond Embroidery Dinosaur Toilet

$6.10

~~$14.13~~-57%