1, Classical permanent markers could be used on different smooth surface .
2, ink from Documental , oil based . no odour, vivid color and long lasting .
3, Ink color black ,blue , red , green .longwearing with fade-resistant ink for your creative needs.
4, Our permanent marker set features waterproof, smudge proof ink which dries quickly.
5, Both chiesel nibs and round nibs are available.
5, ideal for school and office using.