Boat Seat, High Backrest, Folding Fishing Boat Seat with Thickened Sponge Cushion & Waterproof PVC Leather, Aluminum Alloy Hinges, Flip Up Boat Seat for Boats, Yachts, Ships, Black & GreyProduct Features Waterproof Seat The boat seat surface is made of PVC leather, providing waterproof, wear resistant, and UV resistant features. Expertly stitched to avoid tears, its designed to withstand marine and outdoor environments, ensuring durability. 5. 3" x 5. 3" Bolt Hole Installation The folding boat seat features a 5. 3" bolt hole spacing. We provide corrosion resistant screws and washers, making it easy to securely attach the seat to most