Polyform U.S. A Series Buoy A-0 - 8" Diameter - Red. S. A Series Buoy A-0 has proven itself in the most adverse conditions. These Boating & Marine by Polyform U.S. have proven themselves in the most searing pounding waves the world has to offer. The amazing Polyform U.S. A Series Buoy A-0 is made with even wall thickness so that you can get maximum thickness with every throw of the line. For a high-vis yellow buoy that operates using a dual valve inflation/deflation system grab a Polyform U.S. A Series Buoy A-0. Features of Polyform U.S. A Series Buoy A-0 Even wall thickness for maximum thickness Heavy duty reinforced ropeholds Polyform's unique vinyl valve system Redesigned ropehold for A-1 through A-7 for improved strength and durability Dual valve inflation/deflation system for sizes A-5 A-6 & A-7 Excellent rafting fender choice Offered in seven brilliant high-visibility colors' Size: 8" x 11.5" Eye Diameter: .6 in Circumference: 25.1 in Buoyancy Rating: 13 lbs Package Contents: Polyform U.S. A Series Buoy A-0 Polyform U.S. A-0-RED: A Series Buoy A-0 - 8" Diameter - Red