Neewer Photo Video Photography Studio Backdrop Support System with Background Holder Kit and Backdrop Holders Neewer Photo Video Studio Backdrop Support System + 5pcs Backdrop Holders 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) 10ft/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