PILOT Kakuno Fountain Pen - Family Series - Papa - Transparent BluePILOT Kakuno is a simple fountain pen that helps you learn how a fountain pen works. Made from plastic, it is light weight and easy to manipulate. The Family Series celebrates family life with each colour representing a member of the family who gets what in your family? The nib is Japanese quality and includes a different engraving for each family member on the top surface so you know which way to hold the pen. Japanese nibs write one size narrower