The Quik-Lok BZ-7 Musician"s Stool is super comfortable and easy to fold and transport. It"s adjustable with 7 height positions and can support up to 250 lb.New patent-pending design sets up and folds down in 10 seconds Perfect complement for the new Z-71 or Z-72 keyboard structures Thick, extra-wide seat cushion with textured covering Great for guitarists, woodwind, and brasswind players; singers or any seated musician applications 250 lb. (112 kg) eight capacity Optional backrest available in the future