Features: The gear motor is metal materials ensures the wear resistance and toughness of the reducers, Highly temperature resistance, strong load capacity, corrosion resistant. Shape shafts is more convenient to install, not easy to slip, save installation time. Most is mounted on stepper and servos motors to reduce RPM, increase torsions, and fit inertance. This gear motor come with a shot rotors, and coppers winding, bring high conductivity. The electric motor is light weight, space saving, fully enclosed structure. Stable performances, good consistency. Specifications: Materials: Metal Voltages: 24V Speed: 8RPM No Load Current: 0.3A Power: 21W Maximums Torque: 253km.Cm Length: about 12.50cm/4.92inch Package Includes: 1Pc Reduction Motor note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.