Tie Down 86285 Poly Vinyl Trailer V-Bow Stop 3"Tie Down Amber Poly Vinyl Trailer Rollers are made of high-quality, poly-vinyl material that is cut and fade resistance. Ideal for a variety of boats and trailers, this V-Bow Stop is designed to protect the boat from markings and absorb impact. Can withstand both salt water and freshwater conditions. Backed by a lifetime guarantee. Specifications: Size: 3"; Shaft: 1/2"; Proudly made in the USA.