VERY100 Plastic Shaft Rack Reduction Worm Gears Belt Pulley DIY for Robot 34 Kinds

GREEN FABWOOD 75 Type Plastic Crown Gear Single Double Reduction Gear Worm Gear (Original Version)

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

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

Flormoon DC Motor - 5pcs 0.5-6V 15000 RPM Mini Electric Motor - High Torque Magnetic Powered Motor - DIY,Robot,Science Experiments

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

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

Longruner 75 Type DIY Plastic Crown Gear Single Double Reduction Gear Worm Gear for RC Car Motor Robot

EUDAX 2mm Hole Plastic Belt Pulley Gears Combination Modulus Package Rubber Belts Band Plastic Model Accessories for DIY Robots Cars RC Toy Car Airplane