1. The Rockwell hardness of tungsten steel reaches 55, which can cut metal and glass easily. 2. Built-in stainless steel cutter, the seat belt can be cut quickly in emergency, and the operation is simple. 3. U-shaped opening, fingers cannot be inserted, beware of scratches. 4. The size is small and exquisite, does not block the line of sight. 5. In peacetime when there is no emergency, it can be used as a parking number plate.
