Welcome to the world of calligraphy writing with this all-in-one colorful calligraphy set. The Calligraphy Duo set has 12 colored dual tip calligraphy markers so you can create beautiful calligraphy writing and brush lettering in one set. The calligraphy markers are dual tipped with one side a 2.0mm chisel tip marker for more traditional calligraphy writing. The other side of the marker is a 3.0mm felt brush tip so you can create stunning brush lettering.