Muddy Complete Seat can be used alone or can be used to secure backrest around tree. Features thick cushioning on a wide seat and a cushioned back rest for even more comfort. Seat Cushion 18″ W x 14″ D, 3″ Thick in front to 2″ Thick in rear. Backrest is 14″ W x 17″ Tall; 1.5″ Thick. Includes two 1″ support straps and a carry strap.