The product is securely fixed to the window using the supplied self-adhesive tape, and it is actuated by removing the safety tag and hitting the plunger with your palm or fist. Operating instructions come in the form of a sticker that is applied to the window around the device itself.  

The striker pin is diamond ground tungsten carbide tips making them extremely sharp and 100% effective. 

Key Advantages :- 

It is not possible to steal the device, unlike a standard break glass hammer (without wire retention).  

Whole life costs are significantly reduced due to replacements not being required. 

In the event of an emergency the device is always in place, and therefore does not have to be located to facilitate use.  

Certain applications such as airport buses require the hammer to be retained, so that I can`t be taken onto an aircraft.