These stickers are printed on durable, high opacity adhesive vinyl which makes them perfect for regular use, as well as for covering other stickers or paint. The high-quality vinyl ensures there are no bubbles when applying the stickers. • High opacity film that’s impossible to see through • Fast and easy bubble-free application • Durable vinyl • 95µ density Sticker is 3" x 3" Don't forget to clean the surface before applying the sticker.