Kiwaguro Ink Cartridges for Sailor Fountain Pen | Black | 12 Pack | Sailor (Japan)

Sailor’s iconic Kiwaguro ink is famous for its deep, rich black tone — the kind that gives every stroke extra presence on the page. These fountain pen cartridges deliver the ultra-smooth writing Sailor is known for, but with the added advantage of an ultra-fine pigment formula. The ink resists smudging, bleeding, and backstopping, making it a reliable choice for journaling, everyday writing, illustrations, or official documents.

Compact, portable, and incredibly dependable, this 12-pack is perfect for anyone who wants professional-grade ink in an easy, grab-and-go format. Whether you’re finishing sketches, marking planner pages, or writing long letters, Kiwaguro holds up beautifully on paper.

• Style: Fountain pen ink cartridges

• Color: Kiwaguro Black (Ultra-fine pigment ink)

• Quantity: 12 cartridges per box

• Body size (each cartridge): 6.5 × 6.5 × 49.5 mm

• Package size: 44 × 53 × 14 mm

• Body weight: 1.5 g per cartridge

• Total weight: 21 g

• Made in Japan

• Material: Ultra-fine particle pigment ink / Paper outer box