Chalk Art Blackboards Double-sided paint / 1 coat MDF material 300mm square 2.5mm thick Set of 4 These are professional-use chalk art blackboards. Painting will be done after purchase. Since they are painted on both sides with one coat, they are perfect for practice! Of course, they can also be used for the real thing, but there will be some imperfections compared to two coats. Each one is painted by hand. Please understand that there may be slight unevenness. I have other items for sale, so please select and view them according to your purpose. If you want to increase the number of boards, or if you want to purchase other sizes together, we will offer a discount, so please feel free to contact us. #ChalkArt #Blackboard #ChalkArtDedicated #MDF #ChalkArtBoard