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 obstructionSafe without hurting hands ----- Safety hammer U-shaped opening prevents reaching in of fingers and accidental scratches.The size and weight are the same as car keys, thus it is simpler and more fashionable.Compact and convenient ----- Safety hammer Safe without hurting hands,Mini and simple, portable with you. Effective Car Accessory That Can Save Your Life.Hard material ----- Safe hammer glass breaker 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.Instantly break a window in 0.1s Impact force of 6kgRecommended by emergency workers ----- Most electric windows stop working when submerged in water and traditional safety hammers lack the required force to break a window under water. Our tool uses a patented mechanism to help you escape your car in seconds.