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