1)indelible marker pen for election 2)SN contending is 6%-25% 3)can't fade in 72hours,violet to black

1)1)indelible marker pen,14.2cm,dimater 1.2cm

2) also called silver nitrate ink,since it can't be washed by water ,mostly yo be used for voting and election,the content of the silver nitrate could be5%,10%,15%,25%....... according to your require,and the more content of silver nitrate contain,the better effect it will be .

3)packing:12pcs/color box,960pcs/carton