Zig-Clean Color Real Brush Markers. Clean Color Real Brush pens are great for illustrating and sketching. The brush tip makes it easy to create both narrow and wide lines. This 6-1/2x4-1/2x1-5/8 inch package contains twenty-four clean color real brush markers in Black, Carmine Red, Pink, Light Pink, Blue, Cobalt Blue, Persian Blue, Green, Light Green, Olive Green, Deep Green, Pale Green, Yellow, Bright Yellow, Brown, Dark Brown, Orange, Flesh Color, Beige, Violet, Light Violet, Gray, Light Gray and Blue Gray colors. Xylene-free.