Plastic case, Plastic Gear,  Digital 25g Servo for VWINRC TREX 450, or similar rc Helicopter Tail control, rudder control
Speed: 0.08s/60° (4.8V) ,  0.07s/60° (6V) 
Torque: 3.5kg/cm (4.8V) ,   4kg/cm (6V)
Dimension: 35.5x15x28.6mm
Weight:25g