Sakura Microperm Pens

Every facet of fine-line detailing and permanence has been incorporated into the Microperm Pen by Sakura. For writing in micro-spaces or on unusual and challenging surfaces, the Microperm meets the challenge, making precise, long-lasting marks on glass, plastic, wood, metal, glossy sheets, cellophane, paper, CDs, photographic and X-ray film — even circuit boards, test tubes, and diamonds! The Microperm Pen contains black waterproof ink that is chemically stable, low-odor , and non-toxic . Its fine-line nib has a protected tip that won't split. Permanent on most surfaces, Microperm ink can be removed from non-porous surfaces with alcohol-based cleaners.