Sailor's tradition and technology, a soft form that fits comfortably in the hand. The origin of PROFIT. System: Cartridge/converter type / Service cartridge included Body size: 17mm (shaft diameter) x 135mm (shaft length) / 17.0g A timeless, supple writing experience that is the pride of the standard. Nib] 14k gold, medium size, gold-plated finish [Cover, body, nib] PMMA resin Details: Sailor's tradition and technology are stubbornly maintained, and the form is soft and comfortable in the hand. This is the origin of PROFIT, and the pride of the standard lives on in the timeless and supple writing style.