• 3 inch polyurethane bow roller with bells and bolt - 1/2 inch bore.Overall width is 5 inch. This assembly includes the 3 inch bow roller, the 2 bells, and 1/2 inch diameter bolt to mount the assembly.
• This product is thermoplastic polyurethane elastomer(TPU), is one of polyurethane types. From the process, thermoplastic type used the injection type craft.
• Will not rust or will not mark your boat,will not flat spot.
• Designed to support the weight of your boat on the trailer; absorbs road shock.
• End bells ensure that the boat does not scrape against bolts or roller bracket.