This all purpose, premium quality Staedtler Fineliner can be used for writing, drawing and sketching. The indelible pigment ink is lightfast and waterproof for bold lines and brilliant colours designed not to fade. The long metal tip writes a 0.1mm line width for precise control and is ideal for use with rulers and templates. The pen also has a cap off time of up to 18 hours for extended use. This pack contains 10 black fineliners.Fineliner for writing, sketching and drawingLong metal tip for precisionCan be used with ruler and templatesIndelible, lightfast and waterproof inkCap off time of up to 18 hours0.1mm line widthSupplied in a pack of 10Ink colour: Black