These are very convenient, widely available 4-color pens, perfect for color-coding. 0.5mm 4 colors Champagne Gold (can be changed) Ink colors are red, black, blue, and green, all in one. There are 5 different barrel colors. ★ Please specify your preferred barrel color for a change. If no color is specified, we will ship the pen as pictured. (We also have existing 0.38mm pens, although the barrel color is different.) ★ All products are sold in-store, so please rest assured. #piero's Stationery Store - Touch here to find all products Pilot Frixion Frixion Refills Frixion Ball Frixion Ball Refills Frixion Highlighter Frixion Stamp Frixion Eraser