These marker brushes are great to use on a wide range of surfaces, including glass, acetate, plastic, metal, textiles and more! The translucent colors can be blended for an almost unlimited palette, while single colors can be layered for added depth and shade. Each marker has twin tips; the brush nib for fluid strokes and variable line width and the broad nib for large color fills. This set includes two black, cool grey 1, cool grey 2, cool grey 3, cool grey 4, cool grey 5, warm grey 1, warm grey 2, warm grey 3, warm grey 4, warm grey 5 and a white blender.Details:Includes assorted colors13 markersTwin tips; brush and broadNon-streak alcohol based inkNontoxicConforms to ASTM D-424