[Multi-function support] In an emergency, besides breaking the window glass, you can also cut the seat belt. [Lightweight and practical] Ordinary car safety hammers are very heavy and very large. Our escape hammer weighs only 40 grams and can be used by women and the elderly. More importantly, this rescue hammer also has a metal key chain. As an emergency tool, you can hang it on the car key and press it directly on the car window glass. Just turn on the emergency escape hammer to smash it into pieces. [Amphibious use] Ordinary disaster prevention and safety hammers cannot be used due to water pressure when submerged. The multifunctional window breaking hammer is a convenient car emergency escape hammer. Its design is to eject the tip and directly press it on the glass to instantly generate a huge explosive force and smash it into pieces. [Easy to use] Holding the emergency escape hammer in hand, push the push cover onto the glass and compress it to a certain angle. The spring will quickly open the needle and break the glass. Size: about 83 * 35 * 20mm / 3.35 * 1.38 * 0.79in Delivery Quantity: 1pcs Product color: black