... used on paper,card-board,or canvas mildness, environment friendly,fluent,quick-drying,fresh color art pen,drawing pen 1.conform to ... be Washable or non-washable 3.various packing & printing available art pen,drawing penStandard packing : Pvc bag,Colored box,Polybag, PVC ... time:25-30 days after confirming the samples kids use art pen