These Copic Markers in Cool Grey are the original line of high quality illustrating tools, with refillable ink, used for decades by professionals around the world. Copic art tools are the highest quality available in the world today. The Copic Markers are refillable pens and markers that feature replaceable nibs to allow for lifetime use. The marker based airbrushing system is one-of-a-kind, easy to use, and easily extends any existing Sketch or Original Copic marker collection. Computerized color matching and strict manufacturing standards have provided over 25 years of guaranteed color consistency. Copic inks never vary from batch to batch. This set contains the following colours: C6, C7, C8, C9, C10, 100, C0, C1, C2, C3, C4, C5.