Portable Car Glass Breaker: The window breaker and seat belt cutter have a mini-size design, with a key chain, lightweight, and easy to carry. You can put a window breaker keychain in your pocket, connect it to the keychain, hanging in the car, or put it in the vehicle locker.Applicable People: Suitable for frequent travelers in cars, buses, taxis, family car owners, firefighters, etc., and can be used by the elderly and women. Give it to your family for their safety, making them feel peace of mind when driving. We recommend that you place one in each window position in case of an accident to evacuate as soon as possible.Widely Used, Underwater Applicable: The car Window Breaker is used for quick escape in emergencies, such as electrical system failure, flood, car overboard, rollover, car on fire, people trapped inside the car, and so on. Compared with traditional car window breaker Hammer, it can easily break windows even underwater without worrying about water pressure interference. Keeping you and your family safe from unnecessary injuries.Window Breaker with Belt Cutter: The solid, heavy-duty, stainless-steel spike easily breaks tempered glass car side windows. Hit preferably one of the corners of the window. It is equipped with a spring-loaded mechanism. Automatic resets after each use. The embedded stainless-steel blade allows you to cut a jammed seat belt in no time. Slice the seat belt diagonally for a quick and clean cut. It comes with a protective shell to avoid accidental injury and can be used multiple times.3 in 1 Car Emergency Escape Tool: You will get 4 pieces of window breaker keychain in 4 bright colors. The car window breaker keychain includes a car window breaker, seatbelt cutter, and whistle. The glass breaker can quickly break the glass of the car side window, the seatbelt cutter cuts off the stuck owner's seatbelt in 1s, and the rescue whistle can provide up to 80 decibel dB sound power, enough to be heard over a half mile away, works great as a distress whistle.