This selection comes with the deconstructed parts of the pulley block: a spacer, 2 pulley sides, a block wheel, 4 lock nuts, a sling eye hook, and 4 difference sized screws. The Pulley Block Kit is used in the RC23, RC30, 712, 912, and 915 trailer winches. It can be found in the replacement parts list of the Trailer Winch manuals linked here.
