Built to withstand years of use, Cal-Junes Hard Shell Buoy Ring is a must for commercial or recreational vessels. Featuring a hard, cross-linked polyethylene shell, this Hard Shell Buoy Ring will not rot or mildew. A black, 3/8” polypropylene rope is attached through the molded-in rope holes and can be easily replaced once worn out. This Type IV buoy ring is SOLAS approved, making it a necessary addition to your boat before your next voyage. Key Features Cross-lined polyethylene shell is durable enough for any weather conditions Mildew and rot resistant SOLAS approved Molded-in rope holes