For Use With Outdoor Equipment, A Backpack, A Keychain, A Dog Leash, Or ?STRONG CARABINER?-UIAA certified in 2020, Major axis strength 25KN (5621lbs), Cross-loaded at 8KN, Hot forged construction rated for tree,Rock climbing, hiking, rappelling, rescue, locking big adult dogs, hammock, swing,Dog Leash and Harness etc ?ULTRA LIGHTWEIGHT?-The net weight is only 2.01oz, minimizing your carry weight,Size 3.9" Height, 2.2" Width (widest point), 1.77" Width (narrowest point), 0.66" gate opening ?QUALITY CARABINER?-Uses 7075 Aviation Aluminum With high strength, light weight, easy to carry.Very smooth lock and gate surface, and it allows new users not to worry about getting blood blisters or scratching themselves if they are not used to the carabiner ?AUTO LOCKING?Heavy-duty spring is sturdy enough and will work for a longer period of time. Regardless if you are hanging in the air or your energetic dog is trying to let go, it will not unlock itself ?FOR EXPERT USE?-Designed with a deep basket to lessen fumbling, keylock nose guards against snagging, easy to grasp shape.Used in the field by experienced backpackers, hikers and park rangers. Multifunctional carabiner that you can use to attach and carry keys water bottles camping gear hang lanterns and lights. Very durable and great for hiking, camping and even kayaking