Do you use whiteboard pens on magnetic green boards?
If you want to avoid dust, can use the pen and chalk Youli liquid, the physical structure and the difference is similar to a whiteboard pen, ink to write after solidification to form a layer of film, in fine matte green board, ceramic, glass, and other objects can be written can wipe! And it can be recycled with ink!
The surface of the ordinary magnetic green board is frosted surface, and the whiteboard pen can only be used on the smooth white board surface, and the other board surface can not be wiped out!
