Drawing Board,Green board,Message Board,Bulletin Board,Memo Board, 1. Two sides use : one side is white ,the other is green 2. Size: 30*20Cm 3. magnetic material inside 4.This dust-free green/white writing board is composed of high polymer coatings, ultra-thin steel plate, and plastic(PE), produced by a high-temperature process.Ituses green baking paint of a low-frequency spectrum ,which is best adapted to human eyes (colour code: P/T3305C).The colour achieves clarity and softness. This product is non-reflective (glare degree ≤10 °) as well as extreme hardness (≥5H ),and with a strong resistance to the writing and rubbing needs. (400g force ≥100000 times),The back of the green board is made from imported, ultra-thin steel plates (thickness: 0.135 0.2mm) and composite plastic (PE) for both sides. The overall panel is flat (flatness3). Non-deformation,double-sided use, and long life are further features.The Green board mates with the liquid chalk pen, the ink of liquid chalk pen and the multi-functional eraser for an easy write and clean. 100% effective use, all of which resolves the dust pollution problem caused by blackboard and chalk, visual fatigue, and difficult maintenance, and a short life.