The phot r heavy duty telescopic collapsible reflector holder with ball joint is ideal for mounting studio reflectors up to 67 170cm to a light stand the holder mounts to any stand that has a 58 diameter top stud it includes a 58 female stand adapter the holder extends from 675cm to 177cm so it can accommodate a wide range of reflectors the 58 socket allows a threaded screw mount adapter not included to be fitted so it can be attached to tripods or light stands with a threaded s