The scratch-resistant board surface is made from steel plate and painted black. This allows the right contrast and prevents the chalk dust from penetrating the surface. Chalk markers can also be easily wiped off with a damp cloth or sponge. The chalkboard surface is scratch-resistant and is suitable for writing on with chalk or chalk markers. It also allows the attachment of important documents and notes with magnets. The anodized aluminium frame PREMIUM EXPO fulfils two basic purposes simultaneously: It ensures strong structure and providesan aesthetic appearance. The frame is connected by grey corners.