Neighborhood Crime Watch sticker is a warning sign to criminals coming closely to your home and neighborhood;Size 3.5 by 2.5 inch to balance hospitality and defense, without being an eye sore. It can be applied on your doors, windows, mailbox as well as vehicles, at your home or office;Made in USA premium outdoor quality with low back glue, peel-n-apply,water proof and weather resistant for years. Must clean the surface before applying the sticker;Mailed each night except Saturday, by first class letter to save you money, and no tracking except large orders;