... -184200232145*31*64 Features:1,which is chalk notebook,basic material is special 250g whiteboard ... be written with chalk.3,can be written with chalk and wiped off easily with eraser;it is ... ,but different sizes available on request.7,chalk and eraser can be matched for a set.Some ... workers, specially producing different kinds of mini blackboard,chalk board, whiteboard, writing & drawing boards and color ...