Polyform U.S. G-3 Twin Eye Fender 5.5in x 19in - Sand w/Adapter. Subscribing to the philosophy that quality does not have to cost more they include ribs for extra strength inflation valves for larger sizes and reinforced rope holds for long-term durability.The G Series fender is designed to provide protection and stand-off for vessels between 10 to 40 feet in length. Package Contents: Polyform U.S. G-3 Twin Eye Fender 5.5in x 19in Polyform U.S. G-3-SAND: G-3 Twin Eye Fender 5.5in x 19in - Sand w/Adapter