Sincereetali【The Necessity of Using a Metal Safety Hammer】This sturdy all-metal lifesaving hammer allows you to escape danger in less than a second, even underwater or on fire. We've 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. 【High-Power Safety Hammer】The hammer tip is made of high-hardness, sharp tungsten steel, which can immediately break the window. It has a hidden cutting edge that can quickly cut the seat belt. 【Seat Belt Breaker】A window-breaking seat belt cutter is built into the lower end of each hammer's handle. It is constructed in such a way that it is impossible for you to accidentally cut yourself, while remaining easy to use in an emergency. The razor-sharp stainless steel seat belt cutter makes cutting the seat belt easy. 【Principle of Car Safety Hammer】The rescue hammer is conical. When the glass is hit with a hammer, the car glass is severely affected at that moment. The external force causes a slight crack. A little cracking means that the internal stress distribution of the entire glass is destroyed, this time, just use it gently. The glass shards can be removed by hitting the hammer several times. < p>【Knock around the glass with a sharp point】The central 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 upper edge of the glass. Once the glass cracks, you can knock a few more times.