Moeller ST2070-HD Offshore Economy 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 an economy seat - durable and affordable. 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: 17.50" D x 15.63" W x 16.25" H