Monteverde One Touch Engage Retractable Ink-Ball with Stylus (MV35341) The retractable Engage draws ink just like a fountain pen. It can be filled from an ink bottle by using the ink converter and drawing ink up through the Ink Ball point or by using standard international size ink cartridges. Your retractable Engage Ink Ball can be left with the point in the writing position for extended periods of time with very little ink evaporation which usually results in drying out, a truly incredible benefit for fountain ink users! The new Monteverde Engage is a new advance in writing technology. This new system is different from anything else you have ever encountered. Get engaged now Monteverde pens