The Necessity of Using a Metal Safety Hammer- This sturdy all-metal rescue hammer allows you to escape danger in less than a second, even under water or fire. We have seen too many tragedies in the news. So for you and your beloved family members, please prepare a safety hammer for each car just in case. And we hope you never use it in your life. Great Power Safety Hammer Hard and sharp high hardness tungsten steel hammer tip, can immediately smash the window, with a knife Hidden cutting edge that can quickly cut the seat belt. Belt BreakerA window-breaking seat belt cutter is built into the lower end of the handle of each hammer. It is built in such a way that it is impossible for you to cut yourself accidentally, while remaining easy to use in an emergency. The razor-sharp stainless steel seat belt cutter makes it easy to cut the seat belt. Car Safety Hammer PrincipleThe rescue hammer is tapered. When the glass is hit with a hammer, so the car glass is strongly affected at this time. External force causes slight cracking. a little cracking means that the internal stress distribution of the whole glass is destroyed, this time just use it gently. Glass shards can be removed by hitting the hammer a few more times. < p>Hit around the glass with a sharp pointThe middle part of the tempered glass is firm, and the edges and corners are weak. A good way is to hit the edges and corners of the glass with a hammer, especially in the middle of the top edge of the glass. Once the glass cracks, you can hit a few more times. Description Product Description Product Information: [Product Name]: Car Safety Hammer [Product Color]: Black < p>[Product size]: about 230*88*38mm [Product material]: ABS, 45# carbon steel [Product net weight]: about 225g< /p> [Product gross weight]: about 238g with color box [Product packaging]: 1pcs/color box [Outer box size ]: about 60 37 45cm [Suitable models]: universal type Features: This product is very well designed: it is more user-friendly and convenient than the average similar product. Its tail is an extended hook. Imagine how many people in an emergency will calmly point the seat belt at the knife slot? And our product is much more convenient to use. In an emergency, people just put it on the seat belt, its protruding hook will naturally hook the seat belt and slide the seat belt into the slot. On the knife, in addition, its basic design, so that the above products are very stable fixed, let the car bumps will not fall off, and once needed, can be very convenient to remove.