Measurements: M: 47x64cm XL: 72x97cm Color: black Material: The decal film of KEK Amsterdam are of high quality, matt black blackboard film. This material is firmer than that of wall decals as one needs to write on with chalk. They are water resistant so they can be easily cleaned. Can be used on any hard surface which is flat and glued as smooth walls, doors, windows. Comes with clear description.