Lightweight and Portable: This car emergency 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 an adhesive backing. You can buy four, two for the front and two for the back. Essential Escape Tools FOR CAR: With this underwater safety hammer and seatbelt cutter, you and your family can quickly escape in an emergency, the window breaker is not afraid of water pressure shocks, it can protect you from quickly getting out of the car underwater, it is widely used in crashes, electrical system failures, car fires, floods, car sinking accidents, and unexpected situations. Car Window Breaker: This 2-in-1 safety hammer has a built-in high-pressure spring and a solid tungsten steel blade with a hardness of 55. Combined with an impact force of 20KGF, it can smash solid window glass in an instant. Note: The metal tip stays inside the tool - It only pops out when the glass is broken. Widely Applicable People: The small car window breaker and seatbelt cutter can quickly smash the side window in an accident, only need to use the force of a finger, you can smash the window in seconds and realize a quick escape. Whether it is the elderly, children, or men and women, they can be easily used to protect your 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 structure, which ensures user safety and prevents hand injuries. When using it, just aim the U-shaped blade at the seatbelt and quickly push forward to easily and quickly cut off the stuck seatbelt.