【QUICK LOCK】-Instantly lock and one hand to open, 2 Way locking, a simple twist the barrel and push against the spring load will open, Automatic re-locking when you release the pressure | 【STRONG CARABINER】-UIAA certified in 2020, Major axis strength 25kN (5,621lbs), Cross-loaded at 7kN, Hot forged construction rated for tree climbing, hiking, rappelling, rescue, locking big adult dogs, hammock, s