Product specifications
 

 ·Product packaging: 12 pieces / box, 12 boxes / box
 

 ·Available colors: 30001 (black), 30002 (red), 30003 (blue), 30004 (green), 30005 (yellow), 30006 (Orange), 30007 (brown), 30008 (purple)
 

 ·Pen holder color: gray white
 

 ·Writing line width: fine about 1 mm
 

 ·Life span: continuous writing of 5000 feet