Specifications:*Weight:16g*Size:22.8*20.5*12.5mm*Speed :4.8V: 0.12sec/60°*Speed :6V: 0.10sec/60° *Stall Torque :4.8V: 1.8 kg/cm*Stall Torque :6V: 2.1 kg/cm*Operating Voltage:4.8V-6V