How to use : Trim films to required size Peel off the backing film Stick to desired surface Squeeze away air bubbles Use a soft cloth to clean the sticker without any trace Wide scope application : Choose a totally smooth surface that is clean and free of dust and moisture. You may use a damp clothes clean thoroughly the applying smooth surface. Peel off the backing paper from a corner, stick to the desired surface, use a soft cloth to squeegee out air bubble when peeling off the paper. If you feel it is hard to clean off the chalk, please try to use a wet cloth to clean off it. Excellent Quality : Made of high-quality vinyl, the chalkboard is Dustproof, Waterproof and Oil proof. Offers great durability for a longer lasting use. Easy to clean by simply using a damp cloth.