Whether you write with a heavy hand or apply little pressure, the Stabilo SENSOR will adjust to your style to give you a relaxed comfortable writing experience whilst protecting the nib from breakage and wear. The metal encased nib is strong and durable making it particularly suitable for use with a ruler. The 0.3mm Fine line width is perfect for extra fine writing, marking and sketching. Stabilo SENSOR is especially suitable for graphic artists and architects and it will keep going for up to 1,200m. This pack contains 10 Red Pens.