AppearanceSize: 6.7*3*0.8 inches Weight: 320g (11.3 oz), all metal construction. Includes ergonomic extended non-slip handle, solid pointed metal hammer, flat hammer and sharp cutting knife. Hidden blade design prevents you from accidental injury. FunctionThree-in-one emergency escape tools: car hammer, broken window, knock on the door. Easily break windows with a sharp hammer in the event of a sudden sinking, overturning, collision or burning of the car. Its still clear even after multipleclicks. The built-in cutter allows for quick cuts in the event of a seat belt failure. Durable and fire resistant for a quick escape. [Storage] Convenient to store in every corner, but please keep it within your reach, the car glove box is a good choice. The necessity of using a metal safety hammer Stop using cheap plastic lifesaving hammers. They are not as practical as they appear. They only make things worse when people are really at risk. When a car catches fire, the plastic melts. Plastic floats easily when the car is submerged in water. This sturdy all-metal emergency rescue hammer allows you to escape danger in under 1 second, even under water or in a fire. We see too many tragedies in the news. So for yourself and your beloved family, please have a safety hammer for each car, just in case. We hope you never use it in your life.