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Detail. Accuracy. Precision.
Explore our range of contemporary writing instruments featuring outstanding styling and utilizing the finest materials, manufactured to the highest standards. O.b Precision writing instruments are available in ball point, fine liner, and pencil versions.
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Writing Instruments

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Ballpoint Pens

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Fineliners

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Pencils

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Find Your Refill

To help you find your refill we first need to know what type of Ob Precision writing instrument you own. If you know your pen type plese select it from the options below.

Fineliner Ballpoint Pen Mechanical Pencil

Select Thickness

All of our fineliner writing instruments utilize the same refill, offered in multiple variants. Please select your desired refill thickness.

Fine (0.8mm) Medium (1mm)

Select Color

Please select your desired refill color.

Black Blue

Select Color

Please select your desired refill color.

Black Blue

Select Thickness

All of our ballpoint pen writing instruments utilize the same refill, offered in multiple variants. Please select your desired refill thickness.

Fine (0.6mm) Medium (0.7mm)

Select Color

Please select your desired refill color.

Black Blue

Select Color

Please select your desired refill color.

Black Blue

Select Thickness

Please select your mechanical pencil's lead thickness.

Fine (0.5mm) Medium (0.7mm)

Find Your Refill

If you would like to purchase a new refill, or if you need any help finding a compatible refill for your Ob Precision writing instrument, please use our refill helper. Click the "Find Refill" button below to get started.

Find Refill