The safety hammer is made of high-grade carbon steel and engineering plastic, sharp and sturdy, which can enhance safety and reliability. The hammer head is made of hardened carbon steel to quickly break the door glass. 4 in 1 design, multi-functional, including safety hammer, cutter, flashlight and alarm light. Anti-slip handle design, lightweight and easy to carry. Warning light: located on the handle, with a separate switch, 9 LEDs flash red, and the hammer's magnetic head can be installed on the roof of the car as an alarm. Not only for car emergencies, but also for work, camping or hiking.