[Safe Hammer Glass Breaker]: Special safety hammer for breaking windows, always get prepared for danger.Break windows of the whole car and Cut the jammed safety belt. Break (a window) even under the pressure of water,Emergency escape without obstruction [Easy To Operate]: The car safety hammer window glass breaker can embody excellent functions and effects in more scenarios due to its small size in case of emergency. [Safe Without Hurting Hands]: U-shaped opening prevents reaching in of fingers and accidental scratches.car safety hammer seat belt cutter size and weight are the same as car keys, thus it is simpler and more fashionable [Breaks Any Type of Car Windows]: Solid and universal tungsten steel head,Gun-type spring breaks window with skills.The working principle type produces strong impact force instantly. Easily break a window even for every people. [Compact And Convenient]: Safe without hurting hands,Mini and simple, portable with you. Effective Car Accessory That Can Save Your Life.