Chalk pens as well as traditional chalks work great with these blackboards and wipe easily from the surface without leaving any residue. Since they are magnetic, you can also save memos, place photos on magnetic boards, etc. These blackboards are the main body made of pine wood frame. These durable grade one blackboard are suitable for any home, office, business, shop, shop, utility, or restaurant. Screws and wall inserts are also provided. They are perfect for menus or special panels, bulletin boards or kitchen note boards, or just as children’s toys. Size: 40cm H x 1.6cm W x 60cm D