GET ONE FREE bottle with Firebox in the Firebox Ink Bundle.
Firebox is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. The 45mL volume will provide approximately 56 standard converter refills assuming a 0.8mL draw. Our ink swatch is produced with a cotton swab on Tomoe River paper. We manufacture thi
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I am a bit obsessed with this colour. Its such a beautifully pigmented rust orange. So smooth and beautiful to write with.
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Danielle · August 31, 2026
Great color. Slightly red orange and writes perfectly.
eve · November 13, 2023
Like this ink! A nice ruddy tone with some great shading.
