Easy to carry: The compact emergency hammer weighs 1.5 ounces (4*0.9) inches and can fit into pockets, wallets, key chains, protective caps with double-sided tape, and can be easily attached to the car for emergencies. Window Breaker: The sturdy tungsten steel blade has a hardness of 55, which provides a strong impact and can smash the window glass in one second Seat belt cutter: Open the protective cover, align the U-shaped mouth of the cutter with the seat belt, push it forward quickly, and get out of the vehicle easily and quickly. High quality material: PC material double-sided adhesive fixed base, frosted protective cap and baked aluminum alloy shell, spring loaded, built-in tungsten steel blade, stainless steel blade cutter. Note: Only the tempered glass of the side windows of the car can be broken, and the laminated glass such as the front and rear windshield sunroofs cannot be broken. For safety, everyone should have one in each car.