... Drawing board 1,Notice board,With magnet 2,Non-reflective,double-sided use 3,zero flying-dust,low-frequency spectrum 4,welco Drawing board: ... ), and composite plastic (PE) for both sides, produced by a high-temperature process. The overall panel is flat (flatness>3 ... Non-reflective (glare degree ≤10 °)4.Extreme hard (≥5H ), and with a strong resistance to writing and rubbing needs (400g force ≥100 ...