Pipe Pen Filler troublemaker-inks Fuku-roku-ju takes his name from

Fuku-roku-ju takes his name from the three characters that represent Taoism's three virtues

Pink and Yellow

Discover Crimson

Lighter than the MR range

and features Ama-Iro (Sky Blue)

Pipe Pen Filler troublemaker-inks Fuku-roku-ju takes his name fromTWSBI's Stainless Pipe extension has been designed to help you get to the last drops of ink around those awkward angles and bottle corners. Suitable for use with following TWSBI fountain pen models: Diamond series 580s, 580AL, 580ALR, 580RG, Diamond Mini, Diamond Mini AL, Diamond Mini RG Also fits the TWSBI converters: spring converter, traditional converter. (Top fitting standard international hole size)