Descriptions:Brand New High Quality.Great for Racing Car， Helicopter and Airplane.Stall Torque: 3.2 kg / cm (4.8V)， 4.1 kg / cm (6.0V).Operating Speed: 23 sec/60?? (4.8V)， 19 sec / 60?? (6.0V)Operating voltage: 4.8-7.2V.Temperature range: -30??C -- +60??C.Dimension: 4cm x 2cm x 3.8cm.Package include:1 x S3003 Servo (with accessories)