Cosmic Swirl - 50ml twsbi-ink For more passport sized refills

For more passport sized refills

The brush pens each feature a flexible brush tip on one end

Fitted with a piston fill mechanism

Robert Oster Signature Ink - Black 'N' Blue (Shake 'N' Shimmy)

Robert Oster Signature Ink - Clay Red

Cosmic Swirl - 50ml twsbi-ink For more passport sized refillsRobert Oster Signature Ink Cosmic Swirl Discover Cosmic Swirl, 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