Two-in-one function: This safety hammer has two main functions: window breaking, using its hard hammer head to easily shatter the glass of a car's side and rear windows; and cutting. Its built-in seatbelt cutter can quickly sever seatbelts if they become unfastened, providing an escape route for passengers. Portable and easy to use: The lightweight and compact design makes it easy to store anywhere in the car, such as in a door compartment, seatback pocket, or glove box. In an emergency, it can be quickly removed and used without complicated steps, making it easy for even passengers with limited strength to operate. Durable and reliable: It is often constructed of high-strength materials such as stainless steel or reinforced alloys, ensuring reliable window breaking and seatbelt cutting when needed. Additionally, some models may be waterproof and corrosion-resistant, ensuring they maintain their performance in a variety of environmental conditions. A car window breaker is a safety tool every car owner should consider. It can provide valuable escape time and save passengers' lives in critical moments. When choosing a product, consider its durability, ease of use, and versatility.