Lightweight AND Portable: This car escape tool is only 9cm, lightweight and small, does not take up space in your car and can be hung on a keychain for easy carrying. Each safety hammer comes with a base that can also be attached to your car with adhesive backing. You can buy four, two for the front and two for the back. Essential Escape Tools FOR Car: This underwater safety hammer and seatbelt cutter can allow you and your family to quickly escape in an emergency, the window breaker is not afraid of water pressure interference, it can protect you to get out of the car quickly underwater, it is widely used for rollover, electrical system failure, car fires, floods, car sinking accidents and all unexpected situations. Car Window Breaker: This 2-in-1 safety hammer has a built-in high-pressure spring and a sturdy tungsten steel blade with a hardness of 55. Together with a 20KGF impact force, it can smash the solid window glass in an instant. Note: The metal tip stays inside the tool - Only springs out when breaking glass. Widely Applicable People: The small car window breaker and seatbelt cutter can quickly break the side window glass in an accident, just need to apply the force of a finger, you will be able to smash the window in one second, to realize a quick escape. Whether it is elderly, children or men and women, they can be easily used to protect you and your family's safety in accidents. Seatbelt 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 aim the U-shaped blade at the seatbelt and quickly push forward to easily and quickly cut through a jammed seatbelt.