My daughter has been raving about these pens for the past few months so I broke down and bought a few. They aren’t really promoted as anything special but they write really well – especially suited to filling out disembarkation cards. The 3mm would be perfect for teeny tiny Chinese text. They turned out to be a bit pricey at Amazon or other American/Canadian online shops, but fortunately extremely cheap here. Also included in the picture is a Nokumori mechanical pencil, a gift from my daughter for fathers day.