Robert Oster Bottled Ink in Blue Martini - 50mL pen-material_‎Stainless Steel The cutout on the side

The cutout on the side of the barrel allows one to see the remaining ink in the pen

5ml ink capacity

Based of crystal clean emerald green

This Edition stands as a tribute to that

6 size nib is made by Jowo for Laban

Robert Oster Bottled Ink in Blue Martini - 50mL pen-material_‎Stainless Steel The cutout on the sideMade in Australia, Robert Osters collection of signature fountain pen ink is born from his love of fountain pens. Inspired by the natural colors of the Australian landscape from one of the most famous wine producing regions of the world, each ink is exciting, unique, and safe for use with your fountain pens. Robert Oster Bottled Fountain Pen Ink in Blue Martini Features Contents and packaging of all Robert Oster inks are nature friendly 50mL Ink