-Set includes 8 pieces Clean Lint Trap stickers, Size 5x1in. -Material: Made from vinyl Brushed Silver Sticker, it looks like metal, but it's not metal. The sticker is thin but strong, waterproof and resistant against scratches,easily removed when no longer needed. -This Clean Lint Trap stickers let people know that lint is highly flammable,pay attention to fire prevention during use. It can be posted on dryers, walls, or wherever a special reminder is needed. -The stickers are very easy to use, with adhesive on the back, just peel off the release sticker and stick it on.