High-quality carbon steel: The sharp firm hammer is made of high-quality carbon steel engineering plastics, the extraordinary hle can provide escape from a broken window at a time critical. Two-in-one function: This car safety hammer emergency escape tool has simple structure two-in-one function. It is a special tool for escaping broken glass when a vehicle is in emergency. Installation steps: 1. Fix the base (the base of the product has its own double-sided tape, just tear off the protective film stick the base on the place to be installed) At the same time, it also has screws, which can be fixed with screws, which is more secure; 2. The rescue hammer is stuck in the base; 3. The passenger car can also be placed directly inside the door, but it must be affixed with eye-catching indication signs. Cutter Cutter: Built-in hook-shaped cutter, which can sharply cut the seat belt to escape in distress restore the freedom of the body. Scope of application: Cars, buses private rooms (reminder: the hammer vehicle security can increase chance of escape by 5%).