Springfield Marine Premium High Back Folding Seat The Springfield Marine Premium High Back Folding Seat keeps you comfortable while out on the water. The high back design provides extra support meaning more comfort. The 5 x 5 5 x 12 bolt pattern makes for easy installation. A rigid injection molded frame maximizes durability while the premium quality upholstery and cushions provide the comfort. Features 5 x 5 5 x 12 bolt pattern Premium upholstery High back for extra support Durable strap keep