Uni Posca markers are famous for the ability to write or draw on any surface including paper, photos, plastic, metal, glass and wood. This pen set features opaque ink which is water-based, lightfast, waterproof and non-toxic. The ink is removable on nonporous surfaces like glass but will be permanent on porous surfaces like paper. They show up well on both light and dark surfaces. After drying, you can cover it with another Posca marker without any problems.
The Uni Posca PC-7M marker features a broad bullet tip which is able to draw line width between 4.5 mm to 5.5 mm.
The set contains 8 assorted colours: White, Yellow Pink, Red, Blue, Light Blue, Green and Black.