3418 Brand new & high quality Small size， light weight， high efficiency Ideal for R/C Helicopter， Plane， Car & Boat or trucks use Compatible with most standard receiver connector: Futaba， Hitec， Sanwa， GWS， Airtronics & Aashai etc. Dimension: 23x12.2x29mm Stall torque: 1.5kg/cm Operating speed: 0.3sec/60degree(4.8v) Operating voltage: 4.2-6V Dead band width: 10us Each servo has 3 different servo arms and mounting screws Connector wire length: approx. 160mm 2 x 9g Servo 6 x Mounting screw 6 x Servo arm