High quality wood material is used. This box has a particularly nice finish and is of exceptional quality. This box is stamped with the craftsman's name on the inside of the lid. There is an extra step to open a hidden compartment that holds a coin.
The "sun" in the name is a Japanese form of measurement. Each "sun" is approximately 3 centimetres in box length. The more steps in the name - the harder it is to open the box. The last part of the title is the name of the pattern displayed on the box.