CQRobot 70:1 Metal DC Geared-Down Motor 37Dx54.8L mm 6V or 12V with Mounting Bracket Kit. 6V-5W-75RPM-15 kg.cm(202 oz.in), 12V-10W-150RPM-27 kg.cm(380 oz.in), D-Shaped Output Shaft Long 16mm.

6V or 12V 70:1 Metal DC Geared-Down Motor 37Dx54.8L mm, with Metal Mounting Bracket Kit, D-shaped Output Shaft 6mm Diameter and Long 16mm;, Max Power: @ 6V: 5 W, @ 12V: 10 W;, No-load Speed: @ 6V: 75 RPM, @ 12V: 150 RPM;, Stall Torque: @ 6V: 15 kg.cm (202 oz.in), @ 12V: 27 kg.cm (380 oz.in);, for Projects Such as Robots, Measuring Devices, Medical Equipment, Smart Balance Car, RC Car Model, Smart Home Appliance, Custom Servo, DIY Engine Toy.