Description
The Octopus Extender is a high-quality, colorless fountain pen ink specially developed for lightening and mixing fountain pen inks. Thanks to its carefully formulated, dye-free recipe, it preserves the excellent writing properties and smooth flow of the ink – an advantage over conventional water dilution.
This innovative ink enables creatives, from writing enthusiasts to calligraphers, to precisely control the finest color gradations, pastel shades, and fascinating effects such as sheen and glitter. It also effortlessly reactivates dried, water-soluble inks, making it an indispensable companion in everyday use and when mixing.
The Extender harmonizes perfectly with the Octopus ink series Classic, Pastel, Write & Draw, Sheen, Dual Shading, and Glitter, as well as many other manufacturers. It also finds ideal application in the RIMIK Rainbow Ink Mixing Kit to create diverse and individual color compositions.
Made in Germany, this ink embodies premium quality and reliability that delights creative minds with the highest demands. A must-have for demanding ink mixers and anyone who wants to get the most out of their fountain pen inks.
Datasheet
Shipping & Returns
The future belongs to companies actively committed to climate protection. That's why we use DHL's GoGreen service to offset CO2 emissions from shipping our products. DHL uses the proceeds to support climate protection projects for emissions offsetting.
Your ordered goods will be sent in an insured parcel via DHL or DPD. Please note that for cash on delivery payments, an additional fee of €2.00 will be charged by the delivery person on site. Please also note that for shipments to non-EU countries, customs may charge additional fees.
Most of the products offered are in stock. Writing instruments and all other products will be sent to you in a padded box. You can find our delivery times on the product detail page and in the shopping cart.
If your product is not available in stock or if it is a custom-made item, this information will be displayed accordingly. We will ship these items as quickly as possible after completion or after receiving the goods from the manufacturer, which means approximately 2-4 days if you order express, otherwise 6-14 days. Only in exceptional cases can this take up to 4 weeks; if anything is unclear, please contact us.If for any reason you wish to return part or all of your order, this is possible within 14 days.
To do this, you must send the products you wish to return with a copy of the invoice to the following address:
Penoblo GmbH
• In den Erlen 8
• 75248 Ölbronn-Dürrn
• Germany
For all time indications in days stated on our website, we refer exclusively to working days. Working days are all days from Monday to Friday, with the exception of public holidays and weekends (Saturday and Sunday). This means that all deadlines and delivery times expressed in days only take working days into account and may be extended accordingly if they fall on a Saturday, Sunday, or public holiday. These days are not counted when calculating deadlines and delivery times. Please observe this regulation to avoid misunderstandings regarding delivery dates or deadlines.

FAQs
Buy it with
Complete your writing experience.
Family Start-up with Expertise
Our family business is rooted in Herrenberg and has been working since 2016 to offer you not just products, but experiences. The satisfaction and personal advice of our customers are our driving force and the heart of our philosophy.
Sustainable packaging
Our packaging is FSC-certified, made from environmentally friendly materials, and reusable multiple times. The filling material consists of compostable cornstarch, free from harmful chemicals, and is recycled for use.
Fast, safe & climate-neutral
Order now, and your products will arrive quickly and climate-neutrally with DHL GoGreen. Emissions are offset so you can shop environmentally friendly at no extra cost.