16mm 3V/6V/12V DC 3-1000 RPM Mini Torque Gear Box Motor Reducer Reversible 16GA

13mm 6V/12V DC 30 - 1200 RPM Mini Torque Gear Box Motor Reducer Reversible 13GA

37mm 6V/12V DC 3.5 - 150 RPM High Torque Gear Box Motor Reducer Reversible 37GB

16mm 6V/12V DC 5RPM 6RPM Mini Torque Gear Box Motor Reducer Reversible 16GA

Mini Worm Gearbox Motor DC 3V 6V 12V 24V 0.6-180RPM High Torque Reversible GW370

40mm 12V DC 3RPM - 200RPM High Torque Gear Box Motor Reducer Reversible 40GB New

12GA N20 3V 6V 12V DC 15-4000RPM Torque Gear Box Motor & 55mm M4 Thread Shaft