This set features a wide selection of Cool Gray shades with a hint of blue for a cold and crisp effect. The acrylic case keeps the markers well organized and displayed for easy navigation to help plan the perfect blends and color schemes. Its iconic oval and double ended design features a Super Brush nib and a Medium Broad nib great for expressive strokes, building tone, blending colors, shading, finer details and lines, and large streak free coverage.Details:Includes assorted cool gray colors12 piecesRefillableReplaceable nibsUltra blendable Made with expertly formulated alcohol and dye-based inks