-Set includes 8 piecesAutomatic Door stickers, Size 5x1in. -Material: Made from vinyl Brushed Silver Sticker, it looks like metal, but it's not metal. The sticker is thin but very strong, waterproof and resistant against scratches. -This Automatic Door Driver Will Open Door stickers Let people know that this is an automatic door and not to damage it by pulling hard. It can be posted on your car window, door, or wherever a special reminder is needed. -The stickers are very easy to use, with a strong adhesive on the back, just clean and dry the glass surface, peel off the release sticker and stick it on.