Ohuhu Oahu markers use alcohol-based ink. Each marker has two tips: a fine tip for details and a chisel tip for filling large areas. The ink dries quickly, and the colors blend into each other easily.
The official store has sets of 40, 60, 80, 100, 120, 160, 200, and 320 colors. There are also a 36-color skin tone set, a 36-color gray set, and a 48-color pastel set. Single markers are also sold in the official store.
The 60-color set includes a colorless blender for softening the edges between colors.