7" Custom Shape Front Adhesive Stickers. Transform windows and clear surfaces into promotional spaces with these unique, full-color stickers. Made of durable vinyl with a peel-off adhesive front, these stickers adhere to windows, doors, display cases, and other clear, smooth surfaces. Applying the stickers on the inside protects them from wind, rain, sun, and exterior damage. Personalize the experience by adding your school, sports team, organization, or company logo or message using our signature full-color process.