Features: Perfectly use for muslin, green screen, canvas, or paper backdrops, aluminum alloy construction for supporting the backdrop As well as perfectly use for parties photo/video studio shooting Package Includes: 2x Adjustable Cross bars(Total Width 10Ft) 2 x 8.5Ft Adjustable Light Stand 2 x Wing nuts 4 x Spring clamps 2 x Wing nuts 1 x User Manual 1 x Portable Heavy Duty Carry Bag (2 ) Backdrop Support Sand Solid Safety 3 Legs Stages Single Action Lock 100% Aluminum construction Max height: 8.5 ft Min height: 3 ft Folded height: 30.9 inch (2 ) Crossbar 100% aluminum construction safety, balance, and life time keeping, inter twist-locking cross bar connection Max length: 10 ft Each crossbar extends to 5 ft Interlock 2 crossbars into a long crossbar (4 ) Heavy Duty Spring Clamp Holds seamless paper, canvas, muslin and other backdrops you need. Light weight and strong pinch. 4.5 inches long Maximum Opening: 2.1 inch mouth Material: Nylon (1) Portable Heavy Duty Carry Bag Premium quality nylon material. prefect for transport and store the backdrop stand kit