Robert Oster Signature Ink - Barossa Grape Discover Barossa Grape, a signature fountain pen ink handmade in Australia with a focus on sustainability, performance, and vibrant color expression. Non-toxic formula safe for everyday fountain pen use Bottled in recyclable PET made at Australia's first carbon-neutral plastics facility Produced in small batches to ensure quality and reduce waste Smooth Writing and Rich Expression Flows consistently with excellent shading or sheen (varies by color) Known for excellent quality and consistent color performance Compatible with a wide range of fountain pens Inspired by the diverse landscapes of Australia, Barossa Grape brings personality and clarity to your writing - whether journaling, sketching, or everyday note-taking.