Check the listing for details. 30KN Auto Locking Carabiner Climbing Aluminum Twist Lock Heavy Duty Clip Tree. Condition: New. Listed at 13.99 USD. 【QUICK LOCK】-Seamless operation with one hand to open, two way locking, a simple twist of the barrel and push against the spring load will open, Automatic re-locking when you release the pressure 【STRONG CARABINER】-CE certified, Major axis strength 30kN (6744 lbf), Cross-loaded at 7kN(1574 lbf), Hot forged construction rated for rock climbing, tree climbing, caving, hiking, rappelling, rescue, locking big adult dogs, hammock, swing etc. 【FOR EXPERT USE】-Designed with a deep basket to lessen fumbling, keylock nose guards against snagging, D-shaped carabiner is proved the strongest based on the same size, and it is easy to grasp 【ULTRA LIGHTWEIGHT】-The net weight is only 3oz/pc, minimizing your carry weight, Size 3.3" Height, 2.9" Width , 0.95" gate opening.