UIAA Certified Heavy Duty: This climbing carabiner is UIAA certified (Certification No.: USA 20-5611) with weight limit at 25 KN (5620 lbs) for major axis, and at 7KN(1573 lbs) for minor axis and locking gate

Auto Locking Carabiners: These aircraft grade aluminum climbing carabiners are great for all activities like rock climbing, ice climbing, rappelling, rescue, swing, aerial yoga, camping and hiking etc.

One Hand Operation: with the twist lock design, you can easily operate this rock climbing carabiner with one hand. With a simple twist to the barrel and push against the spring load, it will open. Once you release the spring load, it'll lock automatically immediately

Super Lightweight: Weighs only 2 oz each, these ice climbing carabiners are perfect for minimizing the weight of your gear during any adventure

Durable and Rustproof: Made of aircraft grade aluminum, you'll enjoy using these durable and rustproof large climbing carabiners for long time.