Rollerball Pens, Six Colors (NWOT)

This set of rollerball pens comes in six colors and a convenient pouch to be able to keep them together. New. The package was opened for the purpose of the photos. According to the product description, the 0.5 mm roller ballpoint pens have a built-in precision ink output regulator, which ensures the liquid ink flows evenly. It adds that the capacity is "... equivalent to 4 ordinary gel pens, which is more economical and environmentally friendly." (I have no idea what is meant by "free ink.") Bundle this with two or more other items from this closet, get a discount, and save on shipping multiple items. 👍 From a non-smoking, critterless, unscented household.