Pilot Cavalier Black & Blue Nib Width: M (Medium) This nib width is discontinued. It has only been used for dip pen style test writing and is like new. The pen will be packaged on its own and shipped via Yu-Packet Post Mini. A Pilot box is available separately, and can be included for an additional 290 yen to cover shipping costs. In that case, it will be shipped via Yu-Packet Plus.