The Belay Master is ideally suited to groups & centres as it provides security & a visual check for leaders that the biner is being operated correctly. The special clip can only be locked into place when the gate barrel has been tightened into the locked position. This acts as a double check that the biner is closed correctly & securely, & the plastic clip itself prevents the biner from being cross-loaded in action. The special clip also keeps the Belay Master in the correct position on the harness so that belay devices work correctly. Note: the Belay Master should never be used without the Clip in place Super safe belay biner Plastic clip prevents cross loading Taper Lock nose for greater gate strength in all directions Strong & light I-Beam construction