The versatile Kupo Super Viser Clamp 9" End Jaw for those instances you need to grab onto a large beam or pipe. Jaws open 9" wide to clamp on square or round stock. Features a maximum load capacity of 66.1 lbs. Constructed of steel threaded rod and aluminum jaws with rubber pads. Terminates in 5/8" diameter baby pin on one end and hex receiver on other end. Jaws stay aligned when clamp opens and closes.