Engineered to support the added weight of heavier boats by properly fitting the curvature of the keel. Allows for easier launching and loading of your boat as well. Used on select Spartan trailers. C.H. Yates rollers are made of solid, high grade black rubber.
High grade rubber construction Used on select Spartan trailers Length: 5 inches Shaft Size: 0.625 inches Outside Diameter: 3.5 inches