1  use of safety hammers
  the life-saving hammer, in fact, utilizes its conical tip, because the contact area of the sharp point is very small, so when using the hammer to smash the glass, the contact points to the pressure of the glass (not pressure Oh, but the unit area of stress) is quite large, this with the principle of the Pushpin is a bit similar, the membrane is easily punctured, And the car glass is subjected to a large external force at that point, resulting in a slight cracking, for tempered glass, a little bit of cracking means that the entire glass interior stress distribution was destroyed, so that in a twinkling of countless spider web-like cracks, at this time as long as gently with a hammer to hit a few more can remove the glass fragments.
The middle part of the tempered glass is the most solid, and the corners and edges are the weakest. The best way is to hit the edge of the glass with a safety hammer and the corners, especially the middle of the top edge of the glass, once the glass has cracked, you can knock a few more. It is said that about 2 kilograms of pressure can crush the corners of tempered glass.
  If there is no safety hammer, the female high-heeled shoes is also a very good thing, the heel is swung up to make enough effort to hit it, the finer the heel is better!
2&NBSP: Get in the car.
  If you take a long-distance bus, you'd better choose a safe exit from the safety door or the top of the car. If you like, you can take a closer look at how to open the security door, because once an accident occurs, you will not be able to look at the use of static breath.
Product function    
&NBSP when the car accident, (for example: Car side turn, Fall River, etc.), need to leave the vehicle escape, can use the life-saving hammer tail cutting knife cut belts, and then use a pointed life hammer to break the window glass, and then jump car escape. It is the last protection barrier for passenger life!
Product Features Introduction:      
This section of the product in the design is very excellent, quite remarkable place: it and the general similar products, more humane, more in line with the actual needs. For example: Its tail end, is an outstretched curved hook, but unlike some products, this part is not prominent, and the handle is generally homogeneous, which increases the difficulty in the use of emergency. Just imagine how many people in an emergency will calmly align their seatbelts to the cutting gap? And we have this product, the use of much more convenient, emergency, people just put it to the seat belt a wave, its stretched hook will naturally hook the seat belt, and make the seat belt slip into the notch of the cutter, in addition, its base design, so that the above products are firmly fixed, and the car bumps will not fall down, and once needed , can be very convenient to remove.