Premium 2 Pack STUDENT DRIVER signs stickers for new driver, removable back glue, sticks better and paint safe. Reduce road rage and accidents for rookie drivers. Low glue sticks but can be removed easily later, for any flat surface like windows, body or bumper. Size 9"X3", please see picture for its actually size comparing to license plate numbers. Help to creates a safer environment to learn driving with this sticker. Research found that 18% urban crashes were struck from the rear, and improper following distance caused 70 percent rear-end accidents. I hope this work for you and good luck! Satisfaction or free if you dare to contact us! Simply email and tell us that you are not using it and get refull nd without return (ONE sticker only)! Full refund available upon return for multiple items. Mailed each night except Saturday, by cheap first class letter to save you money, and sorry no tracking except $15+ orders.