chalk writing board pen:
environmental,non-dust
rich color,refilled
meet EU,SGS,ASTM
can be made according as your design

chalk writing board pens,marker pen:

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) testing standards of SGS.

3. It cleans off easily with dry eraser, even days later, and the writing remains durable, when required.

4. It can be used for all smooth board surfaces.