This durable, lightweight, and easy-to-use 4-Roller Manual Background Support System from Neewer is a practical background solution and an affordable alternative to high-priced electrical roller systems. This backdrop support system can be secured to your wall or ceiling using the included mounting hardware. It features eight expand bars for each side of a cored roll of seamless, metal, or PVC tube. Additionally, four counter-balanced chains are included with friction control for accurately raising or lowering your background.