This is an optional Serpent Aluminum Servo Lever, and is intended for use with the Serpent Cobra S811-Be line of 1/8 scale electric buggies, as well as the Cobra GT-e 1/8 scale electric on-road car. This servo horn is machined from 7075-T6 aluminum for a precision fit on the servo splines and has a classic black anodized finish with laser engraving. This horn is also flex-free, durable and has a superb fit.