4x7 on gloss!
Clean the area thoroughly with rubbing alcohol or soap and water. Do not use a glass cleaner because it will leave a residue behind that will prevent the sticker from adhering well.
Slowly lower the sticker onto the surface and rub it in place firmly with a squeegee or credit card.
Slowly peel the clear transfer tape off at an angle. Be careful not to pull the sticker off the surface.