Robert Oster Seven Seas Ink Bottle Grey Seas, 50ml

Robert Oster Seven Seas Ink Collection

Inspired by the vast oceans that connect the world, the Robert Oster Seven Seas Collection captures the depth, movement, and mystery of the open water. Each colour reflects a different mood of the sea — from calm, glassy blues to powerful storm tones that bring drama and intensity to the page.

Crafted in South Australia, these inks offer smooth flow, expressive shading, and a beautifully nautical palette that suits both writers and artists searching for colours with movement and atmosphere.

A drink for your pen.

The Remarkable Robert Oster

Robert Oster is a South Australian colour creator whose inks reflect his passion, creativity, and deep connection to the Australian landscape. His colours are known worldwide for their beautiful shading, reliability, and expressive character on the page.

Robert Oster Signature Inks are handmade in Australia, inspired by the colours of the continent. They are presented in recyclable 50ml PET bottles, manufactured in Australia's first carbon neutral plastics plant. All Robert Oster inks are 100% Australian made and non-toxic, created with care for both the writer and the environment.

Based in South Australia, the same state as Pencraft, Robert Oster’s work continues to inspire writers, artists, and collectors around the world.