It is a strategy board application dedicated to volleyball.
Boards are available in full and half coats.

In addition to basic magnet placement, movement, and line drawing, double-tapping the magnet
Player names can be written in the magnet.
To draw handwritten lines, you can set the color and line thickness using the settings dialog.

The created operation board data can also be saved.
All scenes during a game or practice can be saved and easily reviewed at any time, so you can quickly understand set play and check your tactics.