With Sakura Marker IDenti Pen by Sakura, the possibilities are endless! Whether you want to write on CD-ROMs or photos, mark textiles, or simply decorate something. Both ends of the Sakura Marker IDenti Pen have a nib: a thin fiber nib (0.4mm) for detailed work and a broad plastic nib (1.0mm) for general writing. The Identi-Pen is designed for intensive use. The ink is waterproof, quick-drying, and virtually odorless. Do you want to remove the permanent ink? The ink can be removed from smooth surfaces with alcohol-based cleaning products. Packaged per 12 in a box.