DUAL TIPS MARKER DESIGN - With fineliner pen and brush marker on one pen, you can switch the tips of artist colored pen freely for an unlimited wider
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KINGART PRO Dual Twin-Tip Brush Pens, Set of 96 Unique & Vivid Colors, Watercolor Markers with Flexible Nylon Brush Tips, Professional Watercolor Pens for Painting, Drawing - Yahoo Shopping
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ZSCM 132 Colors Duo Tip Brush Markers, Artist Fine & Brush Tip Drawing Pens Calligraphy Pens for Adult Coloring Books, Gifts Crafts Journaling Note Taking Back to School Supplies - Yahoo Shopping
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KINGART PRO Dual Twin-Tip Brush Pens, Set of 96 Unique & Vivid Colors, Watercolor Markers with Flexible Nylon Brush Tips, Professional Watercolor Pens for Painting, Drawing - Yahoo Shopping