The Avenger C339BB Grab Clamp with Baby Bushing is flexible and
fast and thanks to its pincer jaw design can be affixed to a wider
variety of round or square pipes, beams and bars than traditional
clamps. It has a push button lock for extra safety and a standard 5/8"
Baby receiver for fixtures and gear with a matching stud. Used in TV,
video and photographic studios and theaters, the Grab Clamp will hold up
to 110 lb.