✅ 50ml Ink Bottle: Faceted glass bottle with a wide base, tight screw-top closure for convenience, ease of use and storage. ✅ Smooth Ink Flow: With Wordsworth and Black bottled ink you are guaranteed richness of colour, smooth ink flow and optimal writing experience. ✅ Superior Performance: Our fountain pen bottled ink is formulated with natural dyes giving the composition a neutral, natural, and non-toxic pH; high-quality formula for superior performance. ✅ Quick To Dry: Wordsworth & Black fountain pen bottled ink takes only a few seconds to dry; no clogging, no smudges, no unwanted deposits. ✅ Guaranteed - All our products are tested for quality and a no-spill experience to guarantee a comfortable and consistent ink flow. Best of all, your purchase is protected by a full satisfaction guarantee. No matter if you need a replacement from accidental or incidental damage, or simply would like a refund, we'll be there to ensure you're satisfied. We are a family owned, and take great pride in being there for our customers like we would be for our family. Faceted 50 ml glass bottle with a wide base, tight screw-top closure for convenience, ease of use and storage. Natural dyes giving the composition a neutral, natural, and non-toxic pH