G Tec C4 for ultimate precision and fine detailingPilot's G-TEC C4 allows you to draw an incredibly thin 0.2mm line, making it perfect for those who need to write a large amount in a small area of the page. The smooth gel ink gives vivid and dense colour, and is available in a variety of different colours, so whether you are drawing for an art project or making notes on a ledger sheet there is always a G-TEC C4 for you! The G-TEC C4 is also refillable, saving you money and reducing waste.0.4mm tip gives a 0.2mm extra fine line.