Nails foils are ultra-thin nail wraps or stickers that can be used to transfer an intricate design or finish, such as cheetah print or metallic-effect, onto the nail. The GelBottle Inc nail foils are very easy to use. All you need to do is apply the FoilX Foil Gel wherever you want the foil to transfer. Tap the foil of your choice over where the gel was applied and pull away to find the foil design transferred onto the nail.