6 Pack - Private Reserve Ink Schmidt 6040 Blue Broad Fiber Tip Metal Body Refill Broad Tip - Blue Ink - Standard Size Metal Body Fiber Tip refill by Schmidt. Spring loaded 1.0 mm fiber tip writing nib. Reservoir based refill with metal tube and stainless steel front section extruded spring loaded 1.0 mm writing nib in a metal adaptor. Schmidt 6040 refills fit 98% of all Rollerball pens that accepts a standard size refill. 6040 Schmidt FineLiner with Broad Fiber Tip Blue Ink. Refill Reads: Private Reserve Ink 6040 Ensure Top Quality - Buy Direct from Lanier Pens - Length: 4.33 inch (110.6mm), Diameter - .25 inch (6.3mm) Made in Germany by Schmidt - Distributed in the USA by Lanier Pens