Polyform's G-Series fender has raised the bar for quality and appearance in utility fenders. Subscribing to the philosophy that quality does not have to cost more we include ribs for extra strength inflation valves for larger sizes and reinforced ropehold area for long term durability. We also put a little fun into fenders by offering the G-Series in 14 colors. Now all competitive products are judged by the standard we set. Features:Even wall thickness for maximum strength Molded in ribs for strength and abrasion resistance Reinforced ropeholds Designed for use by trailered boats and permanent protected moorings Offered in 14 colors to suit any vessel: Black white gray classic red burgundy sand forest green teal blue cobalt navy purple yellow and orange Unique Polyform valve for years of service. Size: 6.5 x 23 in Eye Diameter: 3/4 in Circumference: 20.4 in Product : POLYFORM G-4 TWIN EYE FENDER 6.5 X 23 BLACK W/ AIR ADAPTOR Manufacturer : POLYFORM US Manufacturer Part No : G-4-BLACK