Uni Poster Color Paint Marker Pen Medium Point PC-5M Color Set. 15 Standard Color : Black, Red, Blue, Green, Light green, Purple, Pale orange, Yamabuki, Yellow, Orange, Pink, Light blue, Brown, Gray, White. 7 Natural Color : Pastel Yellow, Pastel orange, Pastel Green, Pastel purple, Sky blue, Light pink, Coral Pink. It uses an opaque water-based pigment ink and produces vivid colors like a poster color (a kind of paint). It has water resistance after drying, does not overwrite, does not bleed or set off, and does not damage the material because it is water-based. PLEASE NOTICE that this is the same set of colors that comes in the PC-5M 15C and PC-5M 7C. However, sometimes the markers will be shipped in individually plastic wrapped from factory to prevent drying without the original package and other times the PC-5M 15C and PC-5M 7C will be shipped instead. In this case, they will not be plastic wrapped because the box provides protection against drying. This is due to product availability,