professional Triple Crossbar Backdrop Stand Kit for family gatherings, weddings as well as for professional photography or party. Perfectly use for muslin, green screen, canvas, or paper backdrops, aluminum alloy construction for supporting the backdrop ?2?x Spring Cushion Support Stand Diameter 1.4 inch diameter tube Single Action Lock 100% Aluminum construction Max Height: 8.5ft Min Height: 3.3ft Folded Height: 3.2ft The stand come with safe lock knobs and spring cushioned for safety use ?12?x Cross Bar Aluminum alloy construction Each Length:2.6ft. Length: 12ft (4 pcs crossbars) Length:5ft(2 pcs cross bars) Interlock 2 crossbars into a long crossbar Holds Canvas, Muslin or Paper Backdrop and other backdrops you need Max load capacity: 39 lbs ?2?x Triple Crossbar Mounting Bracket Holds three crossbars setting at once by placing on the top of support stands. ?6?x 4.5 inch Photography Muslin Backdrop Clamps 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 Maximum opening 2.1 inch fit onto most backdrop stand, background,photo studio ?4?xBackground Multifunctional Clips Helps Securely Tighten Background Simply attach the screen to the clips at even intervals to keep the screen tight and wrinkle free. ?1?x Portable Carry Bag Premium quality nylon material with sturdy zipper everything disassembles back into the bag, easy to store or travel with. Package Includes: (2) x Spring Cushion Support Stand (12)x Cross Bar (6)x 4.5 inch Photography Muslin Backdrop Clamps (2) x Triple Crossbar Mounting Bracket (1) x Portable Heavy Duty Carry Bag