Staedtler: 311 Lumocolor Non-permanent Superfine Black (10) Lumocolor guarantees professional and effective presentation on all overhead transparencies. Not just an OHP pen! - can be used on most other glossy surfaces. Available in single colour packs of 10 or wallets of four assorted - red, blue, green and black or wallets of six assorted - red, blue, green, black, orange and brown. Type and Nib Sizes: 311 Lumocolor Non-permanent Superfine 0.4mm. 312 Lumocolor Non-permanent Broad 1.0-2.5mm. 311 Lumocolor Permanent Broad 1.0-2.5mm. MPN: 311-9 EAN: 4007817331491 311 Lumocolor Non-permanent Superfine Black (10) Attributes: Ink Colour: Black Line Width: 0.4mm MFR Part No.: 311-9 Pen Type: Non-permanent Refill Type: Non-Refillable Retractable: Non-Retractable Tip Size: Fine