Moeller ST2000-HD Offshore Standard Seat w/ Molded ArmsMoeller 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 standard seat with molded arms-an industry favorite. 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: 21" D x 18.50" W x 17" H