Can be used for writing, drawing, drawing, highlighting, highlighting, etc. Glitter Gel Pen Perfect for the young emerging artist to an established art professional. Gel Pen Refills Provides smooth writing without skipping, smearing. Glitter Pens for Coloring Large capacity ink is acid free, non-harm and safe for children. Glitter Pen Make your pens last twice as long for twice the amount of lubrication at half the price of the gel pen set. Pen Ink Refills