[Appearance] size: 6.7*3*0.8 inches weight: 320g (11.3 ounces), all metal construction. Including ergonomic lengthened non-slip handle, solid pointed metal hammer, flat hammer and sharp cutting knife. Hidden blade design prevents you from being injured accidentally. [Function] 3 in 1 emergency escape tool: car hammer, window breaking and knocking. When in the sudden situation of car sinking, overturning, crashing or burning, you can easily break the window with sharp hammer head. It remains sharp even after multiple taps. Built-in cutting knife can quickly cut when seatbelt fails. Durable and fireproof for fast escape. [Storage]Easy to store in every corner, but please keep it within your reach, car glove compartment is a good choice. The necessity of using metal safety hammer Stop using cheap plastic life-saving hammers. They are not as practical as they seem. They only make things worse when people are really in danger. When the car catches fire, the plastic melts. And when the car sinks into the water, the plastic floats easily. This sturdy all-metal emergency life hammer allows you to escape danger within 1 second even under water or fire. We have seen too much tragedy in the news. So for yourself and your beloved family members, please prepare a safety hammer for each car just in case. And we hope you will never use it in your life.