The 2 side stands can be used as light stands, or you can attach the crossbar to be used as a background support. It is made of steel tube constructed for extra heavy duty use; black enamel finish with plastic tips on the legs to prevent movement. It is a portable design for both studio, outdoor and all occasions, the background support system is easy to install and uninstall for professional photographer"s convenience. The crossbar can extend to 12ft wide. The kit includes: Single Crossbar Background support System with carrying bag. 2 Background Stands extend to 9" height Crossbar : extends to 12" wide Weight: 30 pounds