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 S3003 servos are your easiest and efficient way to upgrade your system Performance and reliability have made S3003 servos the favorite choice of professionals Surface Mount Technology improves reliability in applications where there is vibration Type: S3003 Weight: 37.2g Rotation angle: 180 degrees (90 degrees left and right) Applications: This item is mainly used in ships, airplanes, robots, toys and other -control fields. Features: Good control, 0-180 rotation, fast heat dissipation, strong compatibility, low noise. There are holes on the body--easier to insert the grommet. color:Black Material:Plastic + Metal size:44mm x 20mm x 40mm Package Contents: 4 x S3003 Servo and accessories Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.