We are very proud to feature these Monteverde refills for Montblanc ballpoint pens. Two ink types are offered, gel or liquid. Gel ink is more viscous so you will lay down more ink with each stroke. The point size, fine, medium or broad, determines the width of the line on paper. Monteverde liquid ink refills for Montblanc are water based, like the gel. They write smoothly and the colors are quite vivid. We also offer a mini ballpoint refill that will fit Montblanc multi-pens. These refills are loaded with state of the art liquid or gel ink. It is designed to wick onto paper. If it comes in contact in anyway with cloth it will drain itself by design.