3 double ended empty barrels: can paint and touch up the , with both ends.
Universal: High blank paint pen markers can be filled and used with most types of paint and ink materials.
Applicable: They are suitable for artistic acrylic, oil and water based paints, watercolors, stains, inks, dyes and more.
Filling method: Just fill the empty paint blank tube body. Leave the paint stirrer ball in the body before filling. Cover the pen and gently shake the pen to start writing.
Uses: Suitable for arts and crafts, painting, illustration and automotive paint restoration.