Replace your old, dry rotted and cracked boat rollers with heavy-duty molded rubber rollers. Made of tough UV-resistant black rubber, these keel rollers are cut-resistant and shock-absorbent. Will not mar or scratch your watercraft. These molded rollers will provide years of worry-free use. Dimensions• 9-1/2" long• 3-3/8" diameter at bell• 2-1/8" diameter at center• 5/8" diameter hole Shock absorbant Will not mar your watercraft | Deep-V Rubber Keel Roller, 10" in Black