The phot r background clamp will clamp on to virtually anything in your photo studio to provide you with flexibility to mount your camera wherever you need it most you can use it to clamp on to light stands background supports and boom arms just attach it to your camera or flash cold shoe via the tripod screw mount and clamp it wherever you it will clamp on to virtually anything in your photo studio to provide you with flexibility to mount your camera or accessories wherever you need them mos