Spectra AD Cool Gray by Chartpak Set of 12

This Spectra AD Cool Gray set includes 10 assorted Cool Grays as well as a Blender and Black. Sets come in a handy plastic case.

Spectra AD Markers are extremely versatile, featuring dual-ended tips with a flexible brush tip on one side and an innovative Tri-nib on the other.  The AD Marker signature Tri-nib offers three line widths fine, medium and broad with a twist of the wrist. Colors dry fast and are permanent and non-toxic. They can be used with the Spectra AD Blender to create gradations, to blend and to lighten color. They can also be used with traditional xylene-based markers.