TWSBI prices

We track 10 TWSBI products. 10 of the products on this page are currently sold by two or more of the retailers we monitor, and 0 have at least two weeks of price history recorded by us.

TWSBI · Fountain Pens

How we calculate this

Where prices come from. We read the product data each retailer publishes on its own site, unhurriedly and within the rules that retailer sets. We never work around an access control and we never buy collected data of uncertain provenance.

What “verified” means. An offer can win best price only if it is inside our freshness window, matched to the exact variant, in stock, and free of an unresolved price anomaly. “Best verified price” means lowest among the fresh offers we track — not the lowest price on the internet.

How history works. Every price we observe is stored with its source and timestamp. Daily market low, median and high come from those observations, so the price history on this page is ours, not a retailer’s claim.

What we exclude. Stale offers, mismatched variants, bundles compared against single items, and prices that move implausibly without corroboration from another store.

Images. Product photographs come from the retailer they sit beside, loaded from their own image host. We do not re-host them and claim no rights in them.

Read the full methodology →

TWSBI prices

TWSBI Vac700R Fountain Pen - Iris Extra-Fine

TWSBI ECO Fountain Pen - Indigo Blue with Bronze Trim Extra Fine

TWSBI Eco Fountain Pen Rootbeer with Bronze Extra-Fine

TWSBI Diamond 580 Fountain Pen Smoke Rose Gold II Extra Fine

TWSBI Swipe Fountain Pen Pear Green Extra Fine

TWSBI ECO Fountain Pen - Clear Extra-Fine

TWSBI Diamond 580 Fountain Pen - Iris Extra Fine

TWSBI Diamond 580ALR Fountain Pen - Affogato w/ Onyx Extra Fine

TWSBI ECO Fountain Pen - Cream Rose Gold Extra Fine

TWSBI SWIPE Fountain Pen - Ice Blue Extra-Fine