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K'nex Education - Intro To Simple Machines: Gears Set - 198 Pieces - Grades 3-5 - Engineering Education Toy

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Apex RC Products 32 Pitch 32P 14T 15T 16T 17T 5mm Hole Pinion Gear Set 9737

854Pcs Technic Parts And Pieces Set: Gears, Axles, Pins, Connectors, Differential, Tracks, Shock Absorbers, Etc. Compatible With Major Brands. Toy

Alextend 58Pcs Plastic Gears Module 0.5 For DC Motor DIY Model Toys

Aaiov 122739 Replacement 18 Tooth Spur Gear 12 DP/14.5 PA Compatible With Lippert RV Slide Out

AIMATRIX 417Pcs Technic-Parts Gears And Tracks,Axle-Pin-Connectors Cross Shafts-Motor-Pins-Beam Kits,Compatible With Mainstream Building Block

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EUDAX 465PCS DC Motor Kit STEM Mini Electric Motor Kit For DIY Science Projects, LED Light Vanes Propeller, AA Battery Holder, Plastic Gears,

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86T 48P Spur Gear Set Metal Steel With 19T 21T Pinions Gear Sets Upgrade Parts Replace Traxxas 4686 Fit For 1/10 Traxxas Slash 2WD Spur Gear Rustler

Globact 54T 0.8 32 Pitch Metal Steel 3956 Spur Gear With 15T/17T/19T Pinions Gear Set For Traxxas Slash 4X4 4WD/2WD VXL Rally VXL Stampede 4X4 1/10

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Habow 233Pcs Technic-Parts Technic-Gears Axle-Pin-Connector Compatible With Mainbrands Technic-Parts Cam Worm Cogs Gears Steering Parts Differential

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Sumind 5 Pieces 54T 0.8 32 Pitch Plastic Spur Gear Compatible With 4 X 4 VXL Rally VXL HPS HPI RC Car And Boat

SEEMEY 5 Sets Of Technical Parts Complete Gearbox Assembly Trans-Clear Wormbox Gear Motor Reducer Block Mindstorms Robotics Ev3 NXT MOC Transparent

3D Plastic 6AT Planetary Gear Set DIY Model Kits

BIHRTC 100 Gram DIY Assorted Color Antique Metal Steampunk Gears Charms Pendant Clock Watch Wheel Gear For Crafting, Jewelry Making Accessory