[Bunko orange]
[Four-six sentences Black]
[Bunko navy]
[Bunko red]
[Four-six sentences navy]
[Four-six sentences green]
[Bunko Black]
[Four-six sentences Pink]
[Four-Six Sentences Off]
[Four-six sentences orange]
[Four-six sentences red]
[Paperback Pink]
[Bunko Off]
[Bunko green]
The outer surface is polyurethane resin. Compared to vinyl chloride resin synthetic leather, it is durable and difficult to peel off, so it can be used for a long time. Made of synthetic leather material with a grain pattern and moderate hardness that feels good in the hand. Simple design is not noted on the main unit.