Taylor Made - Tuff End Buoy - 21" Diameter - White - 1152. Tuff End buoys feature heavy-duty seamless construction to meet the punishing demands of the commercial marine industry. Made from injection molded vinyl, these buoys are tested to 2000 psi tensile strength, the strongest in the industry. Tuff Ends feature large line holes that will accept standard shackles and allow rope as thick as 1/2" or even 5/8" to be threaded through twice.. Features:. 1 year warranty. Valve located on the side of the buoy for easy inflation. Diameter - 21". Circumference - 66". Line Hole: 1-1/2". Approx. Buoyancy - 180 lb.