Emart Photo Backdrop Stand, 8.5 x 10Ft Photography Background Stand Support System Kit for Video Studio Photo Booth Props Muslin Work great for this heavy duty adjustable backdrop stand. (2) x Support Stand: height adjustable (Min 3 ft  Max 8.5 ft) (4) x Crossbar: length adjustable (Min 5 ft  Max 10 ft) (2) x Spring Clamp: with good tight spring tension, clip backdrop up. (1) x Portable Carry Bag: premium quality nylon material with sturdy zipper.