The Concept SG from Climbing Technology is a hot forged light alloy HMS carabiner with screw gate, conceived for use in trad climbing, sport climbing and alpinism in general. Climbing Technology Concept SG Features: Especially recommended for use with belay devices Large enough for use with knots and for rope manoeuvres on the belay station Emphasized double T beam construction, for an optimal weight / strength ratio Light and shaped, for a better grip Catch-free clean nose to avoid snagging when clipping and unclipping. Load strength loaded: 23Kn Cross loaded: 10kn Open gate strength:8Kn Open gate width:21mm