Tuff End buoys feature heavy duty seamless construction to meet the punishing demands of the commercial marine industry. Tuff End fender ends are made from injection molded vinyl tested to 2000 psi tensile strength, the strongest in the industry! Tuff Ends feature large line holes that will accept standard shackles. The most accurate way to select the right fender for your boat is to survey your docking area to find out what fender is in use for the same size and weight of boat, in terms of fender dimensions and quantities, and use that as a guideline. FeaturesThe curved design hole prevents chafing. recommended inflation is 2 psi.SpecificationsColor: WhiteSize: 9″Diameter: 9″Circumference: 28″Line Hole: 0.935″Approx. Buoyancy: 16 lbsWarranty: 1 yearWeight: 1.9 lbs