DURABILITY - WELDED ALL-STEEL FRAME AND POWDER COAT FINISH PROVIDE MAXIMUM DURABILITY AND PROTECTION. CLAMP JAW IS DESIGNED TO DISTRIBUTE THE LOAD AWAY FROM THE BEAM FLANGE EDGE INCREASING SAFETY. USED FOR QUICK MOUNTING OF A HOIST OR FOR LIFTING A BROAD RANGE OF BEAMS UP TO 12-3/5 INCHES WIDE FOR INCREASED VERSATILITY. STANDARDS - COMPLIES WITH ANSI / ASME B30.17 AND B30.20 STANDARDS. CERTIFICATION - LOAD TESTED TO 125 OF CAPACITY WITH CERTIFICATE.