Product Description 8-Color PC-5M Cool Tone Set : grey, emerald green, light blue, aqua green, sky blue, blue, prussian blue and navy blue Non-toxic, water-based POSCA paint markers can be used on almost any surface, and are loved by professionals, creative hobbyists and amateurs alike. The alcohol and solvent-free opaque paint covers well, is blendable, dries quickly and can be overlaid when dry. ACMI certified and made in Japan.