Plastic swing seat with chain and a built-in abductor (pommel). Complete full support swing also includes head rest extension and leg rest extension. Safety harness and crotch strap standard for proper positioning. Adjust the chain links to fit any frame up to ten feet. Optional headrest, leg rest, seat cover and swing tie-down straps available (sold separately). Medium seat measures 30" x 12" x 14", 150 pound weight capacity.