Emergency Life-Saving -- When the door cannot be opened due to squeezing deformation or too much water pressure, car window breaker can smash the window of the car in an emergency, cut the seat belt and quickly escape. It does not rely on brute force to break windows, so it can be used even under the influence of water pressure. High-quality Materials -- Car window breaker adopts an upgraded firing pin design with stronger impact. Tungsten steel hammer head has a 20% higher window breaking efficiency than ordinary emergency window breaker. Service life is more than 10,000 times. PC material shell, not easy to be damaged under strong impact. Seat Belt Cutter -- The Car Window Breaker have a inline cutter at the end of the handle. This is embedded so that you dont accidentally cut yourself. When trapped in the seat and the seat belt cannot be unlocked, the seat belt cutter of the car safety hammer can quickly cut the seat belt and get out of the emergency. Easy to Use -- This car escort tool has a built-in high pressure spring, and thanks to its spring impact point, the window-breaking head can break windows with minimal force. Combined with the hidden cutter to quickly cut the seat belt, it can be easily used by both the elderly and women. Easy to Carry -- The size of the car escape tool is 83*36*22mm, lightweight and portable, not taking up space, comes with a key ring, which can be hung with the car key, carry it with you. You can use it as an escape tool or decoration.