High quality folding school blackboard with 5 piece colorful chalk Features: --non-toxic pvc film through en71-3 the authentication, non-toxic ink uv printing, transferable no residue oil glue not in metope thick soles leave glue, paper; --through the euramerican safety standards (heavy metals can transfer and its content) detection; ---accord with international children's safety standards (non-toxic Test); but repeated use, easy cleaning is wiped; easy to paste, lasting and firm, remove without traces. The shape you can diy by yourself, like an animal, schedule etc. How to use: 1. Clean and dry surface to make sure that the surface must be flat and there is no any carve; 2. Take out the image from the backing paper; 3. Apply to the surface as the picture shows; 4. Press firmly to squeeze out any air bubbles. It is made of high quality pvc, removable and never harm your wall ! Note: - some wall paints are designed to resist stickers. - it`s recommended to clean the wall leaving no dust and dirt before applying the stickers onto your wall - we strongly suggest having 2 persons to apply the stickers - please don't use it on freshly painted walls - as you`re applying the sticker, use a towel to wipe & squeeze bubbles underneath the stickers - the texture of the wall sticker is smooth (not like a rough surface like normal classroom blackboard!) - the chalk on the board is best to be wipe off by a damp cleaning cloth, write when board is dry. Please noted we also the 45x200cm whiteboard and 45x200cm greenboard models. Inner box packing: 15 sets / box Box size: 19cm * 12cm * 47.5cm Box g.W / n.W: 3.2kg gw 3.5kg; 45*200cm (l*w) / 60*150cm