Friction Fine Liner: Erasable Color Pens The Friction Fine Liner is a fine-tipped color pen from the "Friction" series that erases writing with friction heat. It allows you to write with light pressure without pressing hard, and it uses a plastic pen tip that enables fine writing with the same line width from start to finish. It's perfect for writing in planners and notebooks, making notes on documents, proofreading, and even drawing illustrations. Product Name: Friction Fine Liner Model Number: SFFL-12F Type: Color Pen Size: Maximum diameter φ 15.1mm, Total length 139mm Ink: Friction Ink (12 colors) Ink Colors: Black (B), Red (R), Blue (L), Green (G), Light Green (LG), Light Blue (LB), Pink (P), Baby Pink (BP), Orange (O), Yellow (Y), Violet (V), Brown (BN) Mechanism: Cap type Number of ink colors: 12 colors Type of writing instrument: Marker/Sign pen Item: Marker/Highlighter