Black Diamond GridLock belay carabiner

The GridLock's innovation is the funky gate, which makes the biner look like a figure 8 when closed. At the halfway open point you can slide your harness belay loop all the way into the small basket, put your belay device - BD hopes you'll use their new ATC Guide - keeper cable in the large basket, and when you close the gate everything is locked into its proper place. The idea is the carabiner can't turn 90 degrees and get cross-loaded, so the load stays on the strong axis as God and Yvon Chouinard intended.