Stop the crooks dead in their tracks with this awesome authentic static cling alarm sticker! The decal is vivid and easy to notice in a stop sign shape, 2x2 inches. The sign is professionaly manufactured to standard security sign specs to give many years of use. No more worry about peeling off the decals when you want to sell the car or even clean the windows! These decals adhere to the inside of the window! GPS Tracking Warning! Get your car protected with the ReadyAlert Car Alarm Decal. 2 Year Replacement Warranty Auto alarm decals are a true deterrent for car thieves. They would rather try a car that have no warning of an alarm. Our alarm decals are manufactured by the biggest sign maker in the USA. These are static cling decals that adhere without glue on the inside of the auto. The front of the decal is pressed on the inside of the glass facing out and one gently rubs the decal and it will adhere to the inside of the glass. The glass should be cleaned first. This not for the outside of the car only inside facing out.