[Window Breaker]: The spike cone on this keychain clip is made of super hard tungsten steel and can easily break a layer of auto glass. This feature allows you to use it for escape in case of danger [Quality Materails]：These caribeaners are manufactured from premium zinc alloy, which is light in itself (only about 50 grams) but can bear a weight of 50 kg. The outside of carabiner is protected by an electroplating layer, which is beautiful, anti-corrosion, anti-rust, and durable. Carabiner clip kit equipped with two polyester lanyards, wear-resistant, not easily deformed [Double Lock Design]: The keychain is designed to prevent accidental unlocking. It can't be unlocked without pressing the snap on the back of the buckle, but it can be opened quickly by pressing both clips simultaneously. This is a safe and secure, even one-handed operation of the clasp. We own the exclusive design patent for this caribeener [Widely Used]: This unique keychain has the normal functions of hanging items (such as tents, water bottles, keys, hammocks, decorations, dog leashes, etc.) but also has some survival functions (such as breaking windows, carving signs, etc.). Use your powers of observation - you'll find him in many outdoor sports. Examples include traveling, camping, hiking, climbing, hunting, etc [IDEAL GIFT & EMERGENCY PREP]: A perfect practical gift for fathers, graduates and outdoor enthusiasts. A must-have emergency essential for daily use and winter outdoor activities As an everyday necessity, this locking carabiner is very popular among men, and many buy more as gifts for friends and family. Now with the addition of a window-breaking function, this keychain becomes an even more helpful tool.