In keeping with the Polyform tradition of quality the HTM (hole through middle) fender was designed to provide maximum protection in a wide variety of applications. Vertical ribs for extra protection reinforced tube ends to prevent lines from being pulled through if the fender gets caught in a tight spot and extra wall thickness to resist punctures and tears are just a few of the features this high quality fender has to offer. Like our G-Series this style fender is available in fourteen colors ready to beautify as well as protect your boat.Features:Even wall thickness for maximum strength Molded in ribs for strength and abrasion resistance Reinforced tube ends Designed for use in medium duty applications in both permanent protected and unprotected 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: 8 x 20 in Tube Diameter: 5/8 in Circumference: 25.1 in Buoyancy Ratings: 37 lbs Product : POLYFORM HTM-2 8 X 20 BLACK W/ AIR ADAPTOR Manufacturer : POLYFORM US Manufacturer Part No : HTM-2-BLACK