Description

• The long-awaited knock-type friction ball is finally here.
• It can be used quickly for writing notebooks and materials.
• Knock is done with a clip (clip slide knock type).
• The “ON” state is indicated by the appearance of color from a small window (knock indicator).
• Knock type friction ball has appeared.
• We use original “friction ink” that color disappears when it becomes temperature more than a certain level
• Ink becomes transparent when rubbed.
• Eraser residue does not appear to make ink colorless using temperature change.
• You can write and erase any number of times.
• The main body is matte and has a simple and stylish design.