FresKaro UIAA Certified 25KN Auto Locking Climbing Carabiner Clips, Twist Lock, and Heavy Duty Carabiners for Rock Climbing, Rappelling, and Mountaineering, D Shaped 3.93 Inch, Large Size, BlackQUICK 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 UIAA certified, 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, swing etc FOR EXPERT USE Designed with a deep basket to