INTEGY Billet Machined Alloy Servo Horn 24T for Hitec Servo (r=20, 24mm) OVERVIEW Add some flashy looks to your ride and upgrade performance and durability at the same time with our alloy or carbon fiber upgrades. Most of our alloy or graphite hopup parts are precision machined, and the aluminum alloy parts are available with an anodized finish in multiple colors to help match your color scheme.