30" Standard Ring Buoy with Reflective Tape Molded from high-impact linear, low density polyethylene (LDPE), Mustang Survival"s life rings are designed for superior life expectancy in the most harsh environments. Mustang Survival"s 30", 2.5 kg orange buoy with SOLAS grade retro reflective tape is designed to be used onboard commercial vessels, offshore installations and larger yachts MRD030 is USCG Approved to SOLAS, CCG and BV/MED approved.