Designed for detailed work, these double-ended art markers feature an advanced dye-based alcohol ink formulation that ensures rich color saturation, impressive laydown, and smooth, silky ink flow. - Prismacolor Premier Dual-Ended Art Marker Set - Primary/Secondary Colors, Set of 12Sanford Prismacolor Marker, PRIMRY/SCNDRY 12/SET - This set of 12 includes 050 Violet, 019 Canary Yellow, 015 Yellowed Orange, 008 Pink, 006 Carmine Red, 004 Crimson Red, 032 Parrot Green, 044 Ultramarine, 053 Mulberry, 031 Dark Green, 061 Dark Umber, and 098 Black.