Fusion Climb Unisex Vapor Screw Gate Carabiners Aluminum Aluminum, Modified D-Shape, Light-weight (1.5 oz) Gate Opening: 1"/ 25mm MBS: 25kn Outer Dim: 4.3" 2.5" Weight: 3.00oz Suitable for seasoned climbers Perfect for alpine, big wall and trad routes All carabiners proof-tested to 3600 lbs, Meets EN 352 standards