80Pcs Plastic DIY Robot Gear Kit Gearbox Motor Gear Set for DIY Car Robot

Quimat Plastic Gear Set, 75Pcs Single Double Reduction Gear Worm Gear for DIY Car Robot QY12

EUDAX 82 pcs Plastic Gear Package Kit DIY Gear Assortment Accessories Set for Toy Motor Car Robot Various Gear Axle Belt Bushings

EUDAX 6 set Rectangular Mini Electric 1.5-3V 24000RPM DC Motor with 84 Pcs Plastic Gears,Electronic wire, 2 x AA Battery Holder ,Boat Rocker Switch,Shaft Propeller for DIY Science Projects

JLMetal 58pcs Plastic Gears All Module 0.5 for DC Motor DIY Model Toys

GEAR SET - 24 GEARS

EUDAX Mini Generator Motors 3V-12V DC Motor Electric Motor for DIY Toys Wind Turbine Generator Hand Cranked Power Generator Model (Metal Motor Holder)

VERY100 75 Kinds Plastic Shaft Single Double Crown Worm Gears DIY for Robot

ELEGOO 5 Sets 28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board for Arduino

KeeYees 5M GT2 Timing Belt 6mm Width + 4pcs 20 Teeth 5mm Bore Belt Pulley Wheel + 4pcs Idler + 4pcs Tensioner Spring Torsion + 2pcs Gear Clamp Mount Block with Allen Wrench for 3D Printer RepRap

Yeeco Gear Reduction Motor DC 12V 30 RPM Mini Speed Reduction Motor Electric Gear Reduction Motor Speed Torque Gear with Gearwheel for DIY RC Car Robot Miniature Engine Toy