High Quality Material The shell of the safety hammer is made of aluminum alloy PC and the impact head is made of tungsten steel. The excellent material ensures the evacuation efficiency and safety when carrying. Safety Design ABS protective cover and anti-cut design can effectively prevent injury accidental without affecting daily life. The knife protective cover is equipped with a reinforced key ring which is easier to remove and instantly cut the stuck seat belt. Easy to carry The safety hammer has several storage methods. It can be easily hung on the keychain hung on the car put in a backpack or pocket or worn as an ornament. It is also a good choice to install it next to the car window. Can be used as an escape tool. Two-in-one safety tool The safety hammer has both a cutting blade and an impact device which can easily break the double-layer glass allowing you to quickly get out of the car in an emergency. If the seat belt cannot be opened the built-in knife can be used to cut the seat belt. The knife is designed with a built-in protective cover to ensure safety during use. Wide range of applications This safety hammer can not only be used in the car it can be carried as a key ring but can also be used in other emergency situations. Even women the elderly and children can break windows powerfully quickly and easily. It is suitable for taking it with you on a trip or as a gift for friends.