-Is the option products HHKB Professional series (Professional:4, Professional 2: 4, Professional2 Type-S:2 products).
-Please use KeyCaps were smeared on for many years, damaged or replaced.
-Learn touch typing the standard model's (stamping and) of can you replace standard keytop keytop.
* Touch: to type without looking at the top that
-Replacement key set of 60 pieces (only certain key individual are not sold)
Top pull-out tool
-Instruction manual (replacing the key layout table)
* Please note
Key exchange is recommended at your own risk.
(For replacement when the keytop. scratches. Instruction manual note as you can see on, replace it. ）