Moeller ST2050-HD Offshore Narrow SeatMoeller Offshore seats feature high-impact, seamless, LLDPE double-walled, UV-stabilized seating construction which stands up to punishing marine environments.Includes seat and mounting plate.This is a narrow standard seat, perfect for tight applications. Durable injection-molded mounting plates fit standard-hole-pattern slider or swivel; Corrosion-resistant composite seat frame; OEM marine-grade vinyl; UV-resistant; Mildew-resistant thread; Deep foam cushions; Stainless steel Hardware; Dimensions: 19.50" D x 20" W x 17" H