Neewer Photo Video Photography Studio White 6x9"/1.8x2.8m Muslin Collapsible Backdrop Background Screen with 3.4" Rod Pocket + 5 Pcs Muslin Background Holder Spring Clamps Clips Kit This backdrop support system is lightweight, heavy-duty and extensible for almost any application, including (2) 9ft/2.6m Heavy Duty Supporting Stands, (1) 1ft/3m 4 Section Telescoping Adjustable Cross Bar, (1) Light Stand Carrying Bag. These background holders can be used on crossbar(Diameter&lt; 11"/28mm). -Max. load: 5lbs/2.3kg. (1) Photo Video Studio Backdrop Support System (5) Backdrop Holders