From the manufacturer

Our largest belay and rappel locker, the RockLock Triple Lock carabiner features a one-hand-operable three-stage twistlock gate and a hot-forged, lightweight construction. This versatile locker is ideal for glacier travel, anchors, or use with a belay device.

Features

• Made of 7075 aluminum containing 25% pre-consumer recycled aluminum.
• Square hinge end holds belay loop securely in place 
• Slightly curved spine maximizes gate opening 
• Keylock nose prevents snagging 
• One-hand operable triple action twistlock sleeve  
• Type H or HMS connector. For dynamic belaying using a Munter hitch or belay device 

Specifications

• Weight: 94 g
• Gate Opening: 24 mm
• Minor Axis Strength: 8 kN
• Open Gate Strength: 8 kN
• Major Axis Strength: 24 kN
• 97.8% Aluminum, 2.0% Steel, 0.2% Delrin Plastic
• Country of Origin: Taiwan