for 1/4", 3/8", and 5/8" threaded access, this super clamp supports multiple angled positioning while protecting mounted with its reinforced mechanism Perfect for clamping onto tables, pipe, or flat surfaces to stabilize cameras during tabletops photography or attaching lighting to round tubes in studio setups Engineered with antislip rubber pad, ergonomic ratchets handle, and screws for combining two clamps into double headed grip, this aluminum alloy clamp ensures stable studio equipment mounting for professional photographers, videographers, and content creators needing mounting for LED lights, or extension arms in dynamic shootings Super Clamp features 33lb load capacity and 0.5" 2.1" jaw grip, for securelys mounting photography lights or cameras with its two and 5/8" studs compatibility