Our adhesive windshield message ovals are made from vinyl with a special adhesive backing that will adhere to the windshield for long periods of time but can also be removed without damaging the vehicle. The 4-digit year model ovals, the message ovals, and the certified ovals all measure 5 1/2 in. x 14 in., whereas the 2-digit year model ovals measure 4 1/4 in. x 11 1/4 in. The most popular colors in the oval stickers are yellow & red and yellow & blue, both of which are printed with fade-resistant inks. The arches and reverse arches are clearance items which are compatible with our 5 1/2 in. x 14 in. ovals. All of our windshield ovals are sold in shrink-wrapped packages of 12.