"Before you buy a Locking Carabiner, you must know what kind of Locking Carabiner you need before you know why our Locking Carabiner buckle is better. 【Lightweight and durable】: 3 inch (7.9 cm) Aircraft Grade Aluminum Carabiners, Compact functional design with palm sized, can be used with one hand,Rated at 12KN, each carabiner can withstand limit at 2697 pounds of force, durable, ultralight and rustproof strong carabiners. 【Widely used】: The carabiner keychain is perfect for different sports activities and daily use. Such as camping, hiking, backpacking, trekking, cycling, fishing, hunting and travel etc.. Or simply use it as carabiners key ring or for leashes & harness for your lovely dog or cat.Note: It is not recommended to be used in mountaineering, rock climbing, ice climbing and high-altitude games for your safety. 【Safety design】:A simple twist the barrel and push against the spring load will open, To lock, simply twist the mechanism and experience true stability,do not worry slip out, Engineered for your safety. The 2Lock security nut secures the carabiner from accidentally sliding open while reinforcing the strength of the gate,Avoid safety accidents. 【Super texture】:It is polished finely, feels smooth without burrs, and has a smooth frosted texture. It is exquisite like a work of art. 【12MONTH WARRANTY】: Our warranty time is longer than others as our quality is guaranteed, unconditionally refund or resend with any quality problems, life time friendly customer service."