Professionally display school security, safety, or sign-in policy messages. Made of a UV-inhibitor Vinyl, the decals adhere permanently & colors stay vibrant for years to come. Mounting options include Inside which is inaccessible from the outside & adhesive is on the message side or Outside with the adhesive on the backside of the decal. Included with your decals is our Felt Applicator, to work out any bubbles during application & give the installation a professional look. Simply peel the backing from the top, slowly stick as you peel down.