... ,paint:non-toxic watery paint. 3,polished wooden frame. 4,rounded corner. Basic information of goods:description:chalk board/blackboarditem no ... is coated with non-toxic watery paint by special machine3 ,Can be written constantly with chalk or slate pencil,4, ... than 500 workers, specially producing different kinds of mini blackboard,chalk board, whiteboard, writing & drawing boards and color clay for ...