CHANCS CH-3420 High Torque Geared Motor 12V DC 3500RPM Electric Motor with Motor Speed Controller 20A PWM DC with Bracket

CHANCS Large Torque Gear Motor CH-3420 Electric Motor 12V DC Motor 3500RPM with 20A PWM DC Motor Speed Controller with Bracket

TUZUK 2PCS Set GT2 Synchronous Wheel 20&60 Teeth 8mm Bore Aluminum Timing Pulley with 2PCS Length 200mm Width 6mm Belt (20-60T-8B-6)

4Pcs Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors (6mm)