Feature: 1. 3-in-1 car emergency tool: emergency hammer, belt cutter and keychain are parts of the car. It has a metal car brake hammer, which can smash car windows in an emergency. 2. Cut the seat belt: quickly remove the escape device from the key ring, then remove the buckle, align the seat belt with the seat belt, quickly cut the seat belt and leave the emergency room. 3. Tungsten steel material: PC shell, hammer head is made of tungsten steel. Life: 10,000 times, can crush glass. Thickness: 8 mm, size: 83*36 mm / 3.3*1.4 inches. The striking system has a long wheelbase and precise stroke. The maximum impact force is 78N. The product itself is compact and easy to carry. 4. 1 second to break the window: In an emergency, you can use the car kit to break the glass, remove the cover, and press the firing pin trigger on the glass until it clicks into place. 5. Save space: size 8.3*3.6 cm / 3.3*1.4 inches. The rescue hammer with belt cutter can be inserted into the glove box, door pocket or armrest compartment, and fixed on the car key like a key ring. Specification: Material: PC+tungsten steel Size: 83*36*22mm Package List: 1*Car safety hammer