Introduction of supplement water

1.Enviroment frierndly,no pollution and nontoxic .

2.Ash freee, The residue stay tongeher after erase.

3.Low cost,no storage,convenient to use.

4.Clear and vivid writings,high whiteness and covering no special eraser required.

5.Universal on both black board and green board,no reconstruction,

6.Easy and fluent to writing on the board,

7.Pen points usually maintain wet,Easy to renew and change.

8.Dicersified colors,.White,red,blue,yellow,black and orher colors for your choice.

Specifications of supplement water: