Features: 1. The tungsten steel head has a Rockwell hardness of 55, which can easily cut metal, and glass. 2. Unlike traditional safety hammers, you cannot rely on brute force to break windows underwater, our window breaker is designed according to the principle of a mechanical window breaking, no fear of water pressure, and easy-to-break windows. 3. It can also be used to cut seat belts to facilitate escape and increase the chance of survival. 4. Not only for car emergencies but also for work, camping or hiking. The ideal tool for all occasions. 5. Emergency safety hammer is lightweight, and can be placed everywhere in your car, make sure you can get it anywhere. Specification: Material: Plastic + Metal Color: Red, Blue Product Size: 27 x 98mm Product Weight: 95g Package Included: 1 x Multifunction Car Emergency Safety Escape Hammer