Cal-June Hard Shell Ring Buoy This ring buoy is designed to be unaffected by harsh weather extremes. With its cross-linked polyethylene outer shell, this ring buoy is UV resistant and will not rot or mildew. It also features a black 38 polypropylene rope that can be attached through its molded-in rope holes and can be easily replaced when needed. Features Cross-Linked Polyethylene Outer Shell UV, Rot Mildew Resistant Black 38 Polypropylene Rope Unaffected By Harsh Weather Extremes Molded-In Rop