Come and see our amazing products. This keychain is a car window breaker and seatbelt cutter;Designed with spring loaded window punch and tungsten steel head,just takes 1 second to break car's side window (10mm max thickness).Spring loaded, hit the black end against the window CORNERS by 12 lbs power, It instantly caused the tempered glass to shatter, all male and female can do the job.Compared with normal Safety hammers, this mini car escape tool performs better at water pressure resistance.portable with keychain design can be stored and hung in your car/keychain or bag, easy to access for you to escape from emergency.The Window breaker with premium tungsten steel head, seatbelt cutter with sharp stainless steel blade and PC material case, makes this car safety hammer strong and hard enough for life saving. Pls confirm with us about the packing info, stock color and exact production time before placing your order