One Retractable Gel Pensuni-ball One Retractable Gel Pens, 0.38mm Ultra Micro, Black, 12 Count

Ink that sits on the surface

The black gel ink is made with pigments that stay on top of the paper rather than soaking into the fibres, which the manufacturer says gives brighter, more vivid lines. It is described as quick drying and resistant to smudging, smearing and bleeding, and the listing gives it as water resistant. That makes it a good fit for notes, planners and diaries where crisp, easy-to-read writing matters.

Built for fine, controlled writing

The 0.38mm ultra-micro tip produces narrow lines that suit small handwriting, detailed diagrams and tight margins. A firm rubber grip is built into the barrel for steady control, and the retractable design means there is no cap to lose.

Clips that show the colour

A strong spring-loaded wire clip opens wide to hold onto notebooks, folders or a stack of papers. The colour indicator at the top of each pen shows the ink colour at a glance. This pack contains 12 pens, all in black ink.

How to use

Click the top to extend the fine tip and write. Click again to retract it, then clip the pen into a notebook or pocket.

Before you choose

A 0.38mm tip writes a very fine line, so if you prefer a bolder stroke a wider tip may suit you better. US-market product: packaging and label wording may differ from UK versions.

Standard UK delivery: free on all orders. Estimated 2–3 working days after dispatch.

Express UK delivery: estimated 1–2 working days after dispatch. Free on orders over £75.

Please allow up to 2 working days for order processing; orders are often dispatched the next working day. Delivery times are estimates, not guarantees.

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