The Taylor Made 12" dia. Sur-Moor T3C Hard Skin Mooring Buoy has a seamless and tough, one-piece polyethylene shell. The hard-skin shell features ultraviolet light absorbers for long-term life under the sun and has a sandblasted finish which allows the buoy to be easily painted for identification. Filled with closed-cell foam to positively displace water, the tube-through-the-center design allows the boat anchor chain to pass directly through the mooring buoy for easily attaching your boat to the top of the mooring ball. Hardware not included.• Flanged collar made from rigid PVC tubing• Blue stripe is reflective for nighttime visibilitySpecificationsPart No.: 46370Tube Diameter: 2"Buoy Diameter: 12"Circumference: 38"Approx. Buoyancy: 30 lbs. Filled with closed-cell foam to positively displace water Tube-through-the-center design allows the boat anchor chain to pass through center Blue stripe is reflective for nighttime visibility | Sur-Moor T3C Mooring Buoy, 12" Diam in Blue