Wise 8WD1062 Series Classic High Back Boat Seat Features No-Pinch Aluminum Hinges. Plastic Injection Molded Seat Frame. Marine Grade 28 oz. UV and Mildew Treated Vinyl. Marine Grade High Compresson Foam Padding. Comes with Mounting Hardware to Mount to any Standard BIA 4 Bolt Pedestal System.. Features High impact marine-grade plastic frames; Aluminum "No-pinch" hinges; Contoured compression foam padding; 26 oz. Marine Grade vinyl; Mildew resistant and UV treated; Mounts on any pedestal or mounting surface with a 5 1/4" hole pattern; Specifications Color: Gray, Charcoal & White; Height: 23.25"; Length: 16.5"; Depth: 20"; Seat Depth: 14.25"; Weight: 2.13 lbs; .