... multi-colored non-toxic,meet ASTM,SGA,EU quick dry,refilled,replaced can be used on any smooth ... features: 1.It can be refilled with ink, and the nib can be replaced. 2.Non-toxic, ... harmless and pollution-free. It meets the EN71-3 (EU) and the ASTMF963-03 (United States ... SGS.3.It cleans off easily with dry eraser, even days later, and the writing remains durable, when required. ...