Weight: 20g / support
At its widest point of about 7cm， total length of about 22cm
Special Note: In the writing period of time (about 30-40 people) after the color will fade，
Some friends will think the pen without water， in fact， as long as the pressure then forced to write a written can continue.
Each pen can be a signature 80 people. Cap must be tightly closed after writing.