2 in 1 Glass Breaker: Equipped with a powerful tungsten steel blade with a hardness of 55, this multifunctional car emergency tool serves as a reliable glass breaker and seatbelt cutter. It enables easy escape from your vehicle in emergency situations. Durable & Reliable: Crafted with a high-quality aluminum alloy shell, this car window breaker is built to last. The strong tungsten steel head ensures quick and effective window breaking, providing a safe solution for emergencies. Two glass pieces are included in the package for testing purposes. Underwater Applicable: Designed with classic mechanics and a built-in high-pressure spring, this car glass breaker tool is unaffected by water pressure. It allows for easy escape even in underwater situations, providing peace of mind and safety. Package Includes: The Car Emergency Tool includes two seatbelt cutters and two window glass breakers. Please note that this product is suitable for tempered glass on side windows and does not work on laminated glass like windshields and skylights. It can be easily fixed in your car for emergencies. Product Service: We hope you will never need to use an emergency escape tool, but we understand the importance of being prepared.