BIC 4 Colours Sun gives you 4 different fun colours of ink in the same pen, letting you switch between them as your work dictates so you can efficiently complete your writing tasks. The round yellow barrel contains 4 retractable points that write with pink, purple, orange and yellow inks. The 1.0mm points write with an elegant 0.32mm line width making this a great, versatile pen for home, work or the office.