Type IV Floating Boat Throw Cushion keeps your backside comfy and preserves lives!U.S. Coast Guard-approved! This Type IV Floating Boat Cushion boasts a pair of easy-to-grab, webbing-style straps in case you find yourself overboard. Made from buoyant polyethylene foam that's also a comfy buffer for your behind. Measures 15 x 15 x 3"h. Weighs 2 lbs.