Bastens heavy duty 25T Futaba aluminum servo horn arm with extra threads - holds up to beatings from crawlers such as the Axial Wraith SCX10 XR10 AX10 HPI Savege Flux INCLUDES: one (1ea) Futabe type 25T Aluminum Servo Horn & two (2ea) 2x8mm socket head screws Hard anodized aluminum construction Compression mount; two screws install on either side of arm and tighten center hole around servo spline CENTER to HOLES lengths: first hole at 19.5 mm & second at 24.0 mm THREAD LENGTH: 7 mm Direct replacement for Axial AX30836