The full essentials lineup in the 4mm tip size: Zinc Yellow, DARE Orange, Traffic Red, Shock Blue Middle, True Blue, Currant, Neon Pink, Mr. Green, Signal White, and Signal Black. Ten core colors for lettering, illustration, and mixed media work with clean, precise lines. Acrylic-based, permanent, UV-resistant, semi-gloss finish, non-toxic, and refillable 50+ times.