A compact bottle of pure writing joy. Sailor’s Studio series brings a carefully tuned palette of numbered colours—each chosen for character on the page, from gentle shading to bold saturation. The inks are water-based dye (fountain-pen friendly), well-behaved on good paper, and a pleasure in everyday writers or calligraphy nibs. Why you’ll like it ✅ Studio palette: numbered hues for easy discovery and repeat buys. ✅ Fountain-pen safe: smooth flow, quick clean-up, non-waterproof dye ink. ✅ Converter label included: pop the sticker on your converter so you know what’s loaded. ✅ Neat, stackable bottle: square 20 ml glass with a wide, easy-dip opening—ideal for desks and travel kits alike. ✅ Made in Japan: consistent quality from one of the world’s great pen houses. Details Volume: 20 ml Ink type: Water-based dye Use with: Fountain pens, converters, dip pens, brushes Bottle size/weight (approx.): 34 × 34 × 58 mm, 94 g Converter sold separately