The WALPLUS Pure White Metro Subway Tie Stickers give your interior a whole new look in just a few minutes! They are super easy to apply - all you have to do is peel and stick them onto any clean, flat surface. These stickers have an innovative 3D surface that is durable and resistant to water and heat. They can also be easily trimmed or cut to fit any space. Just a few things to keep in mind - make sure to only attach them to a painted surface at least three weeks after painting and clean the surface before application. Also, avoid permanently wet areas and if your walls are covered with latex paint, it's recommended to add a layer of spray adhesive to prevent the tiles from peeling off. The package contains 20 pieces of stickers that are 30.5 x 15.4 cm or 12 x 6 in, covering an area of 0.85 sqm.