Say hello to BIC 4 Colours Gradient pack with tri-colour metallic barrels. In 1970, French entrepreneur Marcel Bich introduced the Original BIC 4 Colours Pens to the world-leading BIC pen brand. This 4 colour pen can change colours in a click without changing pens! Ground-breaking then and legendary now, BIC multi pens 4 in one are retractable ballpoint pens with green, blue, black, and red ink. The colour pens have a medium 1.0mm point and refillable ink cartridge. This trusty biro pen also features a convenient clip for attaching to a notebook or your pocket and the signature lanyard hole on the top. From the multipen function to the NF Environmental approval, BIC pens 4 colour remain an industry favourite among students, writers, artists, and more.