ITEM NAME:6pcs 25T Aluminum Servo Horn M3 threads Steering Arm High Torque Servos Mot U4X9 6pcs 25T Aluminum Servo Horn M3 threads Steering Arm High Torque Servos Mot U4X9 25T Spline & M3 threads Fit Mostly Standard Servo Motors Aluminum CNC machined for precision,anodized finish Includes two steel bolts to secure the split-clamp onto the servo output Dimension: 35x15x6mm (Hole centers at 20 and 24mm from the servo output.) Color: red Material: aluminum Compatibile with: Mostly 25T Standard Servo Motor Brands ,such as Futaba Savox Xcore HL HSP HD Power Note: Check your specific model's manual for compatibility,or.25T Spline & M3 threads Fit Mostly Standard Servo Motors. 5 x 25T Aluminum Servo Horn. Includes two steel bolts to secure the split-clamp onto the servo output. Aluminum CNC machined for precision,anodized finish.