The "Kusudama" was originally made during the Tango Festival to ward off evil spirits and contagious diseases. It contained medicinal herbs and spices and was decorated with artificial flowers. In the Unjo-ryu style there are three types: Shin (regular), Gyo (semicursive), and So (cursive). Tassels in two sets of six colors hang from the bottom of the ball to represent the twelve months of the year.
The "So" was used by ordinary citizens. It is quite different from the Shin and Gyo types. The medicine ball itself, which should be the main actor, is hidden among the artificial flowers.