Thank you for viewing. The nib is M. It has been stored unused, but the opening of the box is torn due to opening and closing. As a bonus, a compatible converter will be included. It will be shipped via Yu-Packet Post of Yu-Yu Mercari. Kaweco fountain pen with a transparent design, unused. Kaweco's 2022 limited edition. This axis is named "Iridescent," meaning rainbow color or opalescent color. The color changes depending on how the light hits it. It may appear pink or purple, or blue or silver depending on the light. - Brand: Kaweco - Model name: Kaweco Collection - Color: Transparent - Accessories: Instruction manual - Condition: Unused