Spectrum Noir Classique Alcohol Markers are dual-tip professional coloring tools created especially for artists and crafters. Combining the Original and the Graphic Spectrum Noir Markers, these sets have been carefully curated into color families to achieve a smooth, even blend. Simply layer same group colors using the numbering system to achieve beautiful gradients and realistic depth and shade. The markers have a precision matched color cap and a premium Japanese bullet-tip on one end and a chisel tip on the other.