Gun-style working principle: This car safety hammer adopts the gun-style working principle, which can instantly generate a strong impact, feel comfortable, and not easy to slip. A window-breaking hammer: Double-sided head with hardened sharp stainless steel points breaks vehicle windows and seat belts in an emergency. Safety cutter: This car safety hammer is fully functional, with a safety cutter, which can cut the stuck seat belt. It does not take up space. This car safety hammer has a compact design and can be placed in a storage box next to the driver's seat or stored in the center console. It does not take up space to prevent emergencies. Easy to use: gun spring, intelligent chain to break the window, not afraid of water pressure, can easily break the window in the water, can be used directly under any circumstances, which greatly increases the chance of escape.