Rigid and durable foundation, quick use quarter flip thumb locks to raise and reduced the crossbar/backdrops are effortless and provide a constructive lock with none slippage. The cross bar is strong and assembles promptly without the need of challenging extension sections or compact diameter tubing that can't keep the burden https://pipe-and-drape-manufactur87431.ziblogs.com/36440818/about-portable-backdrop-stand