European size ink refill with metal tip and 0.5mm line width. 'Capless quality' means no drying out even without a cap. Fits Schneider topball 811, but standard format fits many other rollerball pens. 114mm long, 6mm diameter. Ink colour: black. Type: Mine Topball 850. Stroke width (mm): 0.5. Fade-resistant (yes/no): no.