Dual-Tip Outline Marker Set, 12 Pens, 24 Colour Effect, Glitter Style Pens for Drawing, Cards, Notes, Doodles and Creative Art Projects

Safe and easy to use: Double line pens set with highly pigmented water-based ink that dries quickly. Acid free, non-toxic, odorless, harmless to environment and safe for children. These unique double-line markers deliver three distinct effects on light-colored paper, black paper, and smooth surfaces: On absorbent, light-colored surfaces: A double-line effect appears. This works on surfaces like cardstock, printer paper, posters, and diaries. On absorbent, dark-colored surfaces: Only the inner silver line is visible. This effect is achieved on materials such as black cardstock. On non-porous, smooth surfaces: Only the outer colored line shows, displaying a metallic sheen. This can be seen on plastic, glass, ceramics, metal, etc.