One pen with twice the pretty lettering power! This pack of 12 color-rich and double-sided calligraphy pens come with one narrow (2 millimeter) tip on one end and a broad (3-1/2 millimeter) tip on the opposite end, allowing a user to switch seamlessly between thick and thin strokes. These pens are great for any level of lettering or calligraphy artist, and can be used for expressive writing, coloring books, or making decorative designs. Transparent storage tray included.