2-IN-1 CAR SAFETY TOOL: This life-saving multifunctional safety hammer + seat belt cutter is durable and reliable, allowing you to quickly exit your vehicle in an emergency situation. SEAT BELT CUTTER: Car Window Breaker 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. SAFE WITHOUT HURTING HANDS: U-shaped opening prevents reaching in of fingers and accidental scratches.The size and weight are the same as car keys, thus it is simpler and more fashionable. 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. EASY TO CARRY: Safe without hurting hands, Mini and simple, portable with you. Effective Car Accessory That Can Save Your Life.