This is one of the lightest mini HMS locking carabiners on the market. It is truly multi-functional & works really well as a small HMS on your harness thanks to its kinked back design that allows a massive gate opening & correct alignment on the belay loop. The versatile design works equally well as compact rigging/multi-purpose screwgate. Lightweight HMS locking biner Wide gate opening Shape encourages correct alignment on the belay loop Strong I-Beam construction