Heres an item that checks all the boxes.

Diamine has released a special collection to celebrate its 150th anniversary. The ink bottles in the collection are a unique triangular shape that forms a circle when arranged with eight bottles. The result is an impressive desk display!

Diamine brand ink has a long and rich history, dating back to 1864. Diamine ink is produced in the UK and is made with a gentle formula safe for all fountain pens. It has quickly become one of the most popular and sought-after brands around. A wide selection of ink colors is available.

This is one 40 ml bottle of fountain pen ink.

A versatile find that works for any occasion.