Product net weight: 50g Product Name: automobile safety escape Hammer test glass: one piece Size: 20x88mm Package size: 120x80x35mm Process: sandblasting oxidation Material: aluminum alloy / PC + ABS, etc Including packing weight: 110g Specifications: Easy to Carry: can fit into pockets, wallets, key chains, protective caps with double-sided tape, and can be easily fixed to the car for emergencies. Window Breaker: A sturdy tungsten steel blade with a hardness of 55, which provides a strong impact and can shatter the window glass in one second Seat belt cutter: Open the protective cover, align the U-shaped mouth of the cutter with the seat belt, push it forward quickly, and get off easily and quickly. High Quality Material: Metal frosted, aluminum alloy material, placed in the car, can withstand high and low temperatures. Note: Only the tempered glass of the side windows of the car can be broken, and the laminated glass such as the front and rear windshields and sunroofs cannot be broken. To be on the safe side, everyone should have one in every car. Package Included: Safety hammer * 1, base * 1, test glass * 1