Black Diamond GridLock Screwgate CarabinerWith its revolutionary, patent-pending design made possible by our in-house hot forge, the Black Diamond GridLock Screwgate eliminates the dangers of cross loading. Designed specifically for belaying, the intuitive, easy-to-use GridLock isolates the belay loop behind its uniquely shaped gate, thereby keeping the carabiner in its proper orientation. The GridLock's I-beam spine transitions into a large, rounded rope-bearing surface for maximum strength and smooth rope feeding. Simply put, you'll never have to deal with a shifting, cross-loaded belay carabiner again.Hot-forged constructionI -beam spine transitions into a rounded, large ropebearingsurfaceIntuitive and easy-to-use designScrewgate sleevePatented, innovative design isolates belay loop toeliminate cross-loadingIsolates belay loopType H or HMS connector. For dynamic belaying using a Munter Hitch or belay device.