The Petzl Attache Screw Lock is a compact pear-shaped carabiner. Designed for easy use when belaying. Lightweight and compact, easy to handle. Pear shaped facilitates belaying single ropes with a Munter hitch. Keylock System (snag-free body / gate interface). SCREW-LOCK manual locking system. Technical specifications: Strength: 23 kN long axis, 6 kN open gate, 7 kN short axis. Return Policy: Climbing equipment sales are final. In order to guarantee the life saving integrity of the climbing gear we sell -- we cannot accept returns on any life safety climbing or mountaineering equipment.