Tempress ProBax Orthopedic Folding Boat SeatDesigned with input from spinal surgeons and ergonomic experts, the Tempress ProBax Orthopedic Folding Boat Seat delivers superior comfort for extended days on the water. The patented dual-core foam support system provides clinically proven back and upper-body support, helping reduce fatigue and promote better posture. Built with durability in mind, this seat features a rugged polypropylene shell covered in heavy-duty 30 oz marine-grade vinyl that resists UV damage, stains, and mildew. The universal 5-1/4" bolt pattern accommodates standard mounting systems and pedestals, making installation straightforward. Perfect for helm seats, fishing pedestals, ice shelters, and duck blinds, this ABYC H-31 compliant seat measures 23-1/2"H x 18-1/2"W x 19-1/2"D. Made in the USA and backed by a 1-year warranty, the ProBax seat is available in multiple colors to match your boat's aesthetic.Features: Proven back support to promote better posture and reduce back aches; Engineered with input from spinal surgeons and ergonomic seat experts; Accounts for water chop, long sitting sessions, and repetitive fishing motions; Provides optimal long-term back and upper-body support; UV resistant materials and rugged polypropylene seat shell; Heavy duty 30 oz. marine grade vinyl shields against stains and mildew; ABYC H-31 Compliant, exceeds the highest standards for safety in boating; Easy installation; accepts any 5-1/4" x 5-1/4" mounting system or seat pedestal; Ideal for helm seats, pedestal fishing seats, ice shelters and duck blinds; Made in the USA; 1 Year warranty; Specifications: Dimensions: 23-1/2" H x 18-1/2" W x 19-1/2" D;