APS offers the Replacement Sheave for Racelite's 360ﾰ Swivel C-Cleat Mount. The sheave sits atop a vertical tube, which elevates the swiveling cam cleat base so that line can be led to the cleat from below. There are numerous parts associated with installing or rebuilding the 360ﾰ Swivel C-Cleat Mount. They include: RO860P (Replacement Plastic Bush Swivel); RL860SR (Replacement Split Ring); RL860RB (Rebuild Kit for RL860 Swivel); and RL860WO (306 Swivel Cam Cleat Mount without Cleat). This item is simply the replacement sheave.