There is a total of four stickers in one box, two rectangular and two rounds. Rectangle stickers are pasted on the front and rear windscreen of the car while round stickers are pasted on the dashboard and other relevant places of the car. Unfortunately, in case of a car accident, any person presents at the accident site or the police can scan the sticker and immediately give information about the accident to your family and friends along with photos/videos, so that you can get proper medical facility and other help on time. Getting the best help can save your life.