Small speed reducing motor with metal gearbox increases . -gearbox motor for DIY RC Hobby, vehicles, drones, planes and more. Mini is small and lightweight to mount a wheel on the motor's output shaft or copter blade. Model: JGA12-N20 Working Voltage: DC 6V Output Speed: 300RPM Gearbox Size: 17 x 11.9 x 10mm/0.67 x 0.47 x 0.39 inch(L*W*H) Motor Size: 11.9 x 9.8 x 8.8mm/0.47 x 0.39 x 0.35 inch(L*W*H) Shaft Diameter: 3mm/ 0.12 inch Shaft Length: 10mm/0.39 inch Weight: 9g Main Color: Silver Material: Metal Package Contents: 1 x Mini Gear Motor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.