Aluminum carabiner light and high load, with screw sleeve and Keylock system. The D shape transfers the majority of the load on the main axis of the carabiner, which is the most resistant. The asymmetric shape is also ideal for belay systems. The screw sleeve allows to have a safer closing of the gate, and also makes it suitable for professional use. Usefull for use during bolt belay.Key Features:- Heavy load- Keylock System- High quality product completely developed and manufactured in Italy- Tested piece by piece