This is an invaluable safety device that can save lives. In the event that a vehicle enters deep water, this hammer allows occupants to break the window glass from the inside, aiding quick escape from the vehicle. To operate, open one end of the safety hammer and aim it at the side window glass of the vehicle. Through simple pressure on the bottom of the safety hammer, the hidden striker pin is released, making it possible to break the glass without applying great force. Because of its compact size, it can be easily stowed close to hand in the glove or armrest compartment.