Ready for the harshest marine conditions, this pair of low-back folding boat seats combines a durable Pu polyester surface with thick, high-elastic foam padding. Water-, wear-, and Uv-resistant fabric with precise stitching stands up to spray and sun, while the cushioned backrest and seat relieve pressure on the back, spine, and hips through long days on the water. Each backrest folds flat for compact storage and unfolds smoothly when it is time to fish. Rust-proof aluminum alloy hinges and a sturdy Pp frame deliver stable support even when you lean back fully. A 5.1-inch bolt-hole pattern with included corrosion-resistant screws and washers mounts the seats to most swivels or bases base and swivel are not included.