CE Smith Boat Trailer Rubber Bow Roller CE Smith Replacement trailer bow rollers constructed of black natural rubber. Fits standard brackets and shaft sizes. Natural Black Rubber Replaces original equipment on many trailers Two sizes available Sizes Part Number Diameter Width Shaft Size 29540 3 3-18 12 29541 3-12 3-34 12 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Trailer Rollers Wiser Yes Material Rubber Fast Ship In Stock Shi