Sumi - Flex Fountain Pen, Black Edition
11 reviews**PLEASE ALLOW 2 WEEKS FOR US TO MAKE AND DISPATCH YOUR PEN**
"Game-changing!" Sumi - The Flexible Fountain Pen
Why isn’t there a fountain pen that writes like a calligraphy pen with no need to dip it in ink? This is the question I asked myself three years ago. It seemed no one had a good answer so I set about answering it myself. And after a pile of prototypes, failed experiments and a lot of head scratching, I’m very proud to introduce you to Sumi - The Flexible Fountain Pen!
"Tom has done it again! I mean...just look at it! This is his new fountain pen that has a flexible fine nib which means you can have your thick and thin lines without having to dip your pen in ink every so often!"
Hazel's Lettering (professional calligrapher)
The Sumi's secret ingredient is the custom, super-flexible nib which allows you to write as thin as 0.4mm, and up to 2.0mm when fully flexed. It’s also tipped with a German iridium tip for a smooth writing experience (no more scratching or ink splatters) and, unlike standard calligraphy nibs, it will last a lifetime.

It's springy, fun to use and incredibly addictive!

Sumi - Flexible Fountain Pen, designed to celebrate creativity, craft and individuality.
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The brass stand has been designed to be equally happy standing on your desk, or in your bag on the go.
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The Sumi pen works beautifully with all Diamine Inks (including shimmer!) You can find them here). Be sure not to use calligraphy specific ink as this can clog the pen.
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BONUS, Want to use your Sumi as a creator pen? No problem, you can find the attachment here.
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Like a good pair of leather shoes the Sumi Pen will soften and become even more flexible with use. It will adapt to your style of writing and become unique to you. As such, it may take a little time for your pen to ‘settle in’. If you have any questions at all about the functionality of your pen, please get in touch as we are always very happy to help.
- We recommend you flush your Sumi pen thoroughly before use. This will remove any oils from the nib which are present during manufacture, and will impede ink flow. Any of the following are good options: our Nib Cleaning Solution, distilled water or water with a touch of dish soap.
- If you are having any problems with your nib 'rail-roading', this is usually down to ink flow issues and residual oil on your nib (see above). Make sure you are writing slowly so that the ink has a chance to catch up with your writing.
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It is designed to compliment your calligraphy pen and not replace it entirely. If you're looking for the maximum softness and flex please take a look at my Flourish Pens.
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Measures 165mm with brass stand, 150mm without and weighs 67g with brass stand, 25g without.
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Each pen is beautifully presented in a gold foiled gift box.
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Every pen is machined from solid metals on a lathe used for making fine watch and aerospace grade components, so you can be sure your pen will write perfectly for years and years to come.
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Brass naturally develops a patina over time and with use. You can choose to embrace this unique change or use our Brass Polish to bring it back to its gleaming best.
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We offer a complimentary repair service, so should your Sumi pen need a little TLC please contact us .
- We Ship Internationally.
- Your order will be shipped within 48 hours when in stock, please refer to lead times of the product you are buying, as some handmade / hand dipped products may take longer until we send them.
- All UK orders are shipped free over £60 using Royal Mail and there is a tracked or special delivery option so you can track them as they leave us. For International orders we use the Royal Mail’s Airmail service. Again, you can track them along the way.