Window clings are great for business and personal use. They are easy to remove and reposition with no residue left on the surface. Clings applies to glass, windows, car windows, appliance, etc... We only offer the cling for the inside use only. The artwork will not be visible from the outside. These are great for advertising and promotional use. Clings stick onto the surface with static and have glossy smooth finish. It is recommended to water the area on the glass before installation. Squeegee is also recommended to remove the air bubbles and water.