Monteverde Soft Roll Ballpoint refill to fit mini and multi-function pens, commonly referred to as a D-1 refill. Soft Roll ink is the latest technology in ballpoint ink. Because it has a lower viscosity than regular ballpoint ink, it provides an easy ink flow that creates an unprecedented smooth and soft writing experience. This breakthrough Soft Roll ink is available in a variety of fun and exciting colors. This high quality refill has a nickel silver tube and tip.