WK WT-SHO1 Vehicle Multifunctional Safety Hammer(Tarnish)1. Material: aluminum alloy + PC 2. Applicable: car 3. U shaped design, safe without cutting hands 4. Without fear of water pressure, it can be broken instantly 5. Window breaking hammer, can break the whole car glass 6. The Rockwell hardness of tungsten steel reaches 55, which can easily cut metal and glass 7. The built in stainless steel cutter can quickly cut off the seat belt in times of crisis Specification: Package Weight One Package Weight 0.