Uni-ball One Gel Pen - 0.38 mm

Gel Pens

Available for Afterpay &

The Uni-ball one applies the newly developed "Uni-ball One" ink. The pigment in "Uni-ball One" ink minimizes the penetration of the ink into paper fibre. As a result, it develops original colours on paper, showing a darker black than an ordinary black ink pen, and showing more vivid colours than other coloured ink pens.

The barrel design is stylish and simple. It features a metal oval-shaped clip that can be easily clipped on your notebook or pocket. The joint part of the clip matches its ink colours.

According to research by Ritsumeikan University in Japan, it shows that the darker and sharper the letters in black, the easier it is to remember. So the Uni-ball one gel pen in black ink might become your best tool when studying.

Compatible Refills:

Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Black - 0.38 mm

Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Blue Black - 0.38 mm

Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Blue - 0.38 mm

Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Red - 0.38 mm


Customer Reviews
4.9 Based on 16 Reviews
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A Bunbougu.com.au Customer
Shuo Y.
Australia Australia

Absolutely loving these Uni-ball One Gel Pens. Smooth and easy to write with. Dry fast and the writing stands out especially the black colour ink.

Bunbougu.com.au Uni-ball One Gel Pen - 0.38 mm Review
Darwin S.
Australia Australia

Love how smooth this pen. Everyone at worked who tried it wanted to steal it.

Jacynda P.
Australia Australia

It writes very nicely and and fits perfectly into my collection.

Tania C.
Australia Australia

Great pen that is a pleasure to write with. I nearly have all the Color’s but this green is �

Shion L.
Australia Australia

I’m quite disappointed by this pen actually. I was very excited for it and it had rave reviews, but I think it’s the fact that it’s 0.38mm that detracts from the experience. I did quite like the 0.1mm Uni-ball One, but this thickness is… not good. The ink flow is poor and it gets a bit scratchy. Such a shame!

Li C.
Australia Australia

Nice colour while delivering a smooth and enjoyable writing experience every time.

Shipping within Australia

Order Value Shipping Methods
Under $59

Standard Post (Online Tracking + Transit Insurance) - $6.85

Express Post (Online Tracking + Transit Insurance) - $9.85

Over $59 (after any discounts applied)

Free Standard Post (Online Tracking + Transit Insurance) 

*All delivery service includes online tracking service and transit insurance.

Processing Time: 
Standard Post: 1 - 2 Business Days.
Express Post: Within 1 Business Day.

Delivery Speeds: 
Standard Post: Online Tracking, 2 - 6 Business Days.
Express Post: Online Tracking, 1 - 3 Business Days.

Transit Cover: Every shipment comes with Australia Post Transit Insurance for your peace of mind.

*Shipping to New Zealand starts from $17 by DHL International Express, more info in Shipping Policy to New Zealand.

- What if I change my mind?
You can lodge return or exchange at any time within 30 days after purchase.

- What if I find the products I receive are in a poor condition?
If an item arrives damaged or seems defective. Please contact us and we'll be happy to resolve the issue as soon as possible.
Please see more details in our Return Policy.

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