Lightweight AND Portable: This car escape tool is only 3.6 inches, lightweight and small in size, does not take up space in your car, can be hung on a key chain for easy carrying. Each safety hammer comes with a base that can also be attached to your car with adhesive backing. You can purchase four, two for the front and two for the back.Essential Escape Tools FOR Automobile: This underwater safety car window breaker and seatbelt cutter can allow you and your family to escape quickly in an emergency situation, the window breaker is not afraid of water pressure interference, it can protect you to get out of the car quickly underwater, it's widely used for rollover, electrical system failure, car fires, floods, car sinking accidents, and any unexpected situations.Vehicle Window Breaker: This 2-in-1 safehammer glass breaker has a built-in high-pressure spring and a sturdy tungsten steel blade with a hardness of 55. Along with a 20KGF impact force can break the solid window glass in an instant. Note: Metal Tip Stays Inside The Tool - Only Springs Out When Breaking Glass.Widely Applicable People: The small volume car window breaker and seatbelt cutter can quickly crack the side window glass when encountering an accident, only need to apply the force of one finger, you will be able to break the window in one second, to realize a quick escape. Whether it is the elderly, children or men and women, they can be easily used to protect you and your family's safety when encountering accidents.Seat Belt Cutter: The car safety hammer has a built-in sharp stainless steel blade with a hidden U-shaped blade design to ensure user safety and prevent hand injuries. When in use, simply point the U-shaped blade at the seat belt and quickly push it forward to easily and quickly cut through a jammed seat belt.