The frictional heat generated by rubbing the drawn lines with the special eraser on the knock part causes a chemical change that makes the ink colorless, so you can erase and rewrite it many times.
- This is a set of 3 color ballpoint pens Off black, Rose red, Cobalt blue (diameter 0.38mm)
- Replacement ballpoint core type URR-100-38
JPY 
Euros
British Pounds
Australia Dollars
US Dollars
Canada Dollars
Chinese Yuan
Singapore Dollar
Hong Kong Dollar
