The Sentinel is a small HMS carabiner that features DMM's new I-Beam construction technique. This design results in a in a lighter carabiner that reatains the same strength as much heavier carabiners of similar size/use. Specs: Weight: 48g Major Axis Strength: 24kN Gate Open Strength: 7kN Minor Axis Strength: 8kN Gate Clearance: 18mm