Specifications: Voltage: 4.8V 6.0V Torque: 45 oz-in (3.2 kg-cm) 55 oz-in (4.0 kg-cm) Speed: 0.16 sec/60° 0.13 sec/60° Dimensions: 1.4 x 0.6 x1.1" (36 x 15 x 29mm) Weight: 0.88 oz (25 g)