Private Reserve Ink Brand Schmidt 6040 Fiber Tip Blue Ink (5888 Style) Metal Body Refill. Reservoir based fineliner with metal tube and stainless steel front section extruded spring loaded 1.0 mm writing nib in a metal adaptor for a smooth writing feeling.

Nib Size: Broad Colors: Blue Length – 4 5/16” (11cm) Diameter - .245” (0.62cm)

Schmidt 6040 Fiber Tip Metal Refill Fits:

Acme, Aurora, Bexley, Bossert & Erhard, Caran d’ Ache, Colebri, Conklin, Conway Stewart, Delta, Diplomat, Faber-Castell, Itoya, Jean-Pierre Lepine, Lanier, Marlin, Montegrappa, Monteverde, Pentel, Retro 1951, Recife, Rotring, Stipula, Visconti, Waterford, Waterman, Yafa, Yard-O-Lead, and many other roller balls made in U.S.A., Taiwan, Korea and China.