... -toxicFeatures: 1,Basic material of the kid blackboard is MDF board.2,Surface black is coated with non-toxic paint by ... special machine.3,Can be written constantly with chalk.4,Eraser and chalk can be matched.5,Test report:ASTM F963 ... than 600 workers, specially producing different kinds of mini blackboard,chalk board, whiteboard, writing & drawing boards and color clay for children. Our company ...