Each motor is with a rubber cover (used to fix the motor). Suitable for making vibration models as well as brushing cars. Motor length: 0.8cm; Motor diameter: 0.4cm; Voltage range: 1~3.7V; Rated voltage: 3V、 rotate speed will be 5400/min and current is 60mA. Dimensions: 0.51 in x 0.24 in x 0.20 in (1.3 cm x 0.6 cm x 0.5 cm) Weight: 0.39 oz (11 g)