Extra large and designed to fit over ladder rungs, pipes, safety rails, building apparatus or anywhere you may need the huge gate clearance of these exceptional and strong carabiners. The gate clearance of our Ladder Hook is enhanced by our unique side-swing gate mechanism, which enables the gate to open beyond the carabiner spine, providing a massive gate opening, even for a carabiner of this size! Manual locking screw gate. Meets NFPA 1983.01 standards. UL Classification G. Made in the U.S.A.