Wholesale GP 1945 Pen Refill (Black/ Blue)

GP22 Black/ Blue Refill German Formula Ink Refill Pack is designed for one of the most funded Kickstarter pen projects, GP 1945 Bolt Action Pen Titanium/ Aluminum. Optimal performance with consistent ink flow for smooth writing on desktop, in-car, or in the wild. Compact size for storage. 60mm in length, 6mm diameter, 2.5mm front tube, 1.0mm medium point. Compatible with many short & compact pens besides the GP 1945 Bolt Action Pen, Black/ Blue Color Gel Ink with a durable cartridge. Please note air bubbles could form during the shipping, putting the refill upright for a few days can eliminate the air bubble and help smooth writing. GP 1945-pen GP22 refill cartridge dimension Fine writing for daily use in the wild, in-car, or desktop use