Manfrotto Metal Chain Expan Set for Background Paper (Gray Chain/22 lb Capacity)Manfrotto offers an extensive range of backgrounds that support photographers in producing the correct setting for their photography. The Expan Set allows lowering and raising the paper backgrounds without lowering the supporting stands. Fast and efficient, this paper drive set is manually operated using attached metal gear and chain. Insert the Expan set in to the paper roll ends, adjust to needed diameter and its ready to be mounted into your