Mitsubishi Pencil Gel Ink Ballpoint 10 Pens Pen, Signo, 0.28mm, Black,

It writes smoothly and doesn't smudge! This ultra-fine tip is recommended for notebooks and other items where you need to write small letters. ●Ball diameter: 0.28 mm ●Ink color: black ●Ink type: Pigment gel ink ●Specifications/Rubber grip ●Refill/UMR-1-28 ● Unit (Quantity) / 1 pack (10 pieces) ●Manufacturer part number/UM15128.24×10 *Please apply in units of one pack.