• This is a flexible metal arm. It features a light clamp on the one end and a 1/4" screws mount on the other end. It can be used with a U-Clamp/C-clamp and will clamp on to virtually anything in your photo studio to provide you with the flexibility to mount your camera or accessories wherever you need them most. You can use it to clamp on to light stands, background supports, boom arms and any other location you can think of. Or you can install it directly on the light stand.