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Quantity
1
Description
4.8
80 ratings
5
4
3
2
1
TWSBI hasn’t failed me yet! Sometimes I find extra fine nibs too “scratchy” for my liking but this brand has one of the smoothest extra fine nibs in my experience (out of the box) it basically gives you crisper lines while having the feel of a medium nib
Jasmine · April 3, 2026
This is without a doubt my new favorite pen. The nib is smooth as butter across the page and the size and balance is just right for my hands. It just feel so comfortable to write with this pen. And the fact that it’s a demonstrator and in a gorgeous color combination is just icing on the cake! For the price, I can’t recommend this pen enough. Amazing.
Ken · March 17, 2026
Nice Pen From TWSBI!
This TWSBI ECO fountain pen has a lot going for it. It holds a lot of ink and the ink supply is always visible. The fine nib on this pen writes surprisingly smoothly and the piston filling mechanism works well. This pen has been very reliable and I have yet to experience a skip or hard start with Iroshizuku Tsuki-yo ink. The threaded-on cap seals the pen quite well and I have not noticed any evaporation or leakage of the ink supply. The TWSBI ECO does everything a good pen should do at an attainable price.
Dennis · January 18, 2026





