This medium rollerball refill has been designed by Montblanc. This Capless Rollerball Refill has been created to fit Heritage 1912 and Montblanc M Rollerball Pens. The Capless Rollerball Refill will be presented inside a small sliding box. This medium size rollerball refill features quick-dry ink. * For Montblanc Heritage 1912 and Montblanc M Rollerball Pens Product details: System: Rollerball pen refill without cap. Tip Width: Medium Contents: pack of 1. Packaging: Montblanc presentation box. Additional Information Width: 0.8 cm Nib Sizes: Medium Nib (M) Product Types: Refill