The Sm'D is full-sized, and has a great twist-locking gate that is easy to open with one hand, snaps closed and locked automatically for the greatest security, and has a large basket that can fit multiple ropes, knots, and virtually any kind of belay device. It is a general, all-purpose locker that thrives for building anchors, as well as rigging applications such as rope access or big wall climbing, where frequent and repetitive use make the twist-locking design a real time saver.