Sunnysky Metal Servo Arm 1.25" Sale! from 791 /per Qty. Add to Cart This is a metal servo arm by Sunnysky. Compatibility - OMPHOBBY Edge 540 60" and many more Specifications Length - 1.25" Spline Teeth - 25T Material - Alloy with steel bolts Qty available:112 SKU:BFWL0018