Pentel Calme Ballpoint Pen was designed to be a clickable pen with one of the quietest and unobtrusive knock mechanisms. When compared to most other clickable pens, the Calme pen is 66% quieter. The design of these pens are meant to be calming as well. Available in matte neutral colors for the most part, pens in the Calme collection come with a rubber grip section with a satisfyingly textured and almost leather-like surface and an equal diameter as the rest of the pen, allowing the grip section to seamlessly align with the rest of the pen. Designed in collaboration with Issey Miyake Length: 5.6 in (14.2 cm) 0.5mm Black Ink Refills available in0.5mmand0.7mm Pentel Calme Ballpoint Pen available in0.5mmand0.7mm