When closed, the clip keeps the carabiner in its strongest orientation, prevents devices and knots from moving onto the spine, eliminates possible cross loading due to rotation. DMM Ceros Kwicklock (twislock) Belay Carabiner – The Climbing Shop The Belay Master's nylon clip prevents accidental opening of the locking mechanism, and ensures the carabiner loads in its strongest orientation. This makes an... This feature makes the Belay Master the perfect belay carabiner for those new to belaying. Closing the clip on the Belay Master ensures the carabiner is safe for use. The DMM Belay Master 2 is a mid-sized HMS belay carabiner that works well with the vast majority of belay devices. Continuing to set standards for the safety and design of belay carabiners, thr Belay Master 2 is an excellent choice for those new to climbing. A patented integral plastic clip increases the overall safety of the belay system Nylon clip ensures carabiner loads correctly Belay Carabiner Clips DMM Pivot - Rhino Set Belay Device Carabiner Locking Belay Carabiner With Safety Clip Keylock nose eliminates snagging, I-Beam construction for optimum strength to weight ratio