Fotodiox Single Roller Paper Drive Background Backdrop Support System for Using Light Stand (Stands are not included) Single Roller Paper Drive Inserts into 1 Paper/Muslin/Cloth/Nylon/PVC Background Roll Complete Set with Stand Clamps, Plastic Drive Pull Chain, and Counter Weight to Ensure Chain Doesn't Tangle Gear Designed Roller Ensures Effortless Raising and Lowering of the Backgrounds There is no limit on the width or the length of the backdrop you choose 24 Month Manufacture Warranty