writing marker pen:
Non-toxic,refilled
fluent wiriting with Acrylic Nib
Hight quality,go throuth many international standard

Writing board marker pen:

1. Non-toxic, harmless and pollution-free. It meets the EN71-3 (EU) and the ASTMF963-03 (United States) testing standards of SGS.

2. It cleans off easily with dry eraser,  can be wrote on all smooth board surfaces

3. can print customers' LOGO

4. MOQ:5000 Pieces/color 

5. the mainly measurement:  12.9cm lengh * 1.5cm diameter of ink cartridge.