BIC 4 Colour gives you 4 different colours of ink in the same pen. This allows you to switch between them effortlessly as your work dictates so you can efficiently complete your writing tasks. The round blue barrel contains 4 refills that write in red, blue, green or black ink. The 1.0mm points writes with an elegant 0.4mm line width, and combined they will write for an average of 8,000m making this a great, versatile pen for home, work or office.