Features metal T-handle for sure locking. This is the original Super Clamp that has thousands of uses!

The Avenger Super Clamp attaches to just about anything: poles, posts, pipes, doors, stands, and beams - virtually any support you can get the Super Clamps wide jaws around.

This universal clamp can be securely mounted on any tube from 0.5" to 2.1". Supplied with a unique wedge insert for clamping onto flat surfaces. A built-in socket allows the use of over 30 attachments to hold anything from backgrounds to lighting.Holds up to 33 pounds