40x8.5Ft heavy duty triple-wide crossbar background support system is Perfect for photo/video studio shooting, home, outdoors and weddings etc on-site.

Perfectly use for muslin, green screen, canvas, or paper backdrops, aluminum alloy construction for supporting the backdrop

（4）x Spring Cushion Support Stand
Solid Safety 3 Legs Stages
Single Action Lock
100% Aluminum construction
Max Height: 8.5ft
Min Height: 3ft
Folded height: 30.9 inch

（8）x Heavy Duty Telescopic Crossbar
Aluminum alloy construction
Max length: 40ft (8pcs crossbars)
Connected by a crossbar connector, the combined maximum width reach 30 ft
Holds Canvas, Muslin or Paper Backdrop and other backdrops you need
Max load capacity: 40 lbs

（4）x 300° Angle Adjustable Crossbar Connector
precisely designed for maximum rotation of 300 degree. Background screens adjusted at various angles for your needs

（12）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） x Sand Bags
Made from nylon material
Extra stability sand bags ensure a strong hold for those extra heavy backdrops.

（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:
(4) x Spring Cushion Support Stand
(4)x 300° Angle Adjustable Crossbar Connector
(8) x Heavy Duty Telescopic Crossbar
4 x wing nut
(12)x 4.5 inch Photography Muslin Backdrop Clamps
(4)x Sand Bags
1 x Portable Heavy Duty Carry Bag