What's in the box:

GoolRC 25T M3 Metal RC Servo Arm Horn for Futaba Savox Xcore HL HSP HD Power 3-20kg Red (Red)

Features:
Material: CNC Aluminum.
Adjustable type servo arm.
25T Spine for Futaba and Power HD Servos.
Includes two steel bolts to secure the split-clamp onto the servo output.
M3 threads for your car or helicopter joints.
Hole centers at 20 and 24mm from the servo output.

Specifications:
Color: Red
Item size: 35 * 15 * 6mm / 1.4 * 0.6 * 0.2in
Item weight: 5g / 0.2oz

Package List:
1 * 25T M3 Metal RC Servo Arm Horn