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Quantity
1
Description
The TWSBI Diamond 580 comes with a benchmark piston ink-filling mechanism and has all detachable parts. The clear demonstrator barrel allows you to see your ink color and remaining ink level. It has a clear grip section and screw-cap. It co...
Reviews
4.7
119 ratings
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wonderful fountain pen!
i got the clear EF; it writes beautifully, holds a lot of ink and i love the piston filling!
C
Cathy · 17 days ago
Love my new Twsbi! It has a nice way to it and writes beautifully. Additionally, it holds a fair amount of ink. I highly recommend.
L
Lee · March 23, 2026
Favorite pen. This is my go to regardless of how it’s inked. Smooth writing, strong shading, and feels good in my hand unposted.