Wise 8WD1131 Series 10" Base Jump Seat is ideal for replacing worn out seats on your runabout, ski boat or fish n' ski model. Injection molded plastic frame. Marine grade UV and mildew treated vinyl, high compression foam padding. Colors smartly coordinate with today's vinyl color schemes. Seat cushion is removable for underneath storage. Mounts directly to boat floor. Easy assembly. Not to be used as a free-standing seat.