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Detail
The design of the Onoto 'Pi' pen was created as a celebration of the famous 'irrational number' and features the first 314 digits of pi after the decimal point etched to the barrel.
Made from high density acrylic, this is a satisfyingly robust pen, with the plain barrel nicely set off by polished sterling silver trim in the form of 3 cap bands, a pocket clip inscribed with a chevron pattern and the Onoto logo, and a cap button, also featuring the Onoto logo.
Fitted with a gold-plated stainless steel Onoto size 7 nib, available in a range of sizes. Refill with widely-available standard pattern ink cartridges, or fit a converter (supplied with the pen) to use bottled ink.
Available with two weight options: 25g or 32g. Use the drop-down list to select your preference.
Dimensions: capped 144mm, uncapped 127mm, posted 166mm.
Supplied in a luxury gift box.
Additional information
Product Code:
Item Colour:
Item Material:
Tip Material:
Tip Size:
Tip Type:
Delivery
Orders placed before 3pm Monday to Friday will normally be sent out the same day.
UK Orders
FREE Royal Mail Standard delivery for orders over £100, and just £3.50 for smaller orders. Royal Mail Priority is available as an option, for £3.50 on orders over £100, £5.50 on smaller orders. Express available for £9, or FREE with any order over £400. No delivery surcharges for Northern Ireland, Highlands & Islands or anywhere else!
International
International deliveries vary in cost, so you'll need to add the items you want to your basket, and enter the checkout to see the options for delivery. Prices and payment methods will reflect your country, and many countries have all taxes and duties included to make things easier and more predictable.
Orders over 2kg
For all orders outside the UK, heavy orders may cost more to send, but the shipping cost will be displayed in the checkout before you commit.
More Information
For more, see our Delivery Information page.
Reviews
Refills & Spares
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- Refills & Spares
The design of the Onoto 'Pi' pen was created as a celebration of the famous 'irrational number' and features the first 314 digits of pi after the decimal point etched to the barrel.
Made from high density acrylic, this is a satisfyingly robust pen, with the plain barrel nicely set off by polished sterling silver trim in the form of 3 cap bands, a pocket clip inscribed with a chevron pattern and the Onoto logo, and a cap button, also featuring the Onoto logo.
Fitted with a gold-plated stainless steel Onoto size 7 nib, available in a range of sizes. Refill with widely-available standard pattern ink cartridges, or fit a converter (supplied with the pen) to use bottled ink.
Available with two weight options: 25g or 32g. Use the drop-down list to select your preference.
Dimensions: capped 144mm, uncapped 127mm, posted 166mm.
Supplied in a luxury gift box.
Additional information
Product Code:
Item Colour:
Item Material:
Tip Material:
Tip Size:
Tip Type:
Orders placed before 3pm Monday to Friday will normally be sent out the same day.
UK Orders
FREE Royal Mail Standard delivery for orders over £100, and just £3.50 for smaller orders. Royal Mail Priority is available as an option, for £3.50 on orders over £100, £5.50 on smaller orders. Express available for £9, or FREE with any order over £400. No delivery surcharges for Northern Ireland, Highlands & Islands or anywhere else!
International
International deliveries vary in cost, so you'll need to add the items you want to your basket, and enter the checkout to see the options for delivery. Prices and payment methods will reflect your country, and many countries have all taxes and duties included to make things easier and more predictable.
Orders over 2kg
For all orders outside the UK, heavy orders may cost more to send, but the shipping cost will be displayed in the checkout before you commit.
More Information
For more, see our Delivery Information page.