Change colours without changing pen with BIC 4 Colours Original. This box contains 36 blue, black, red and green ink all in one pens With the 4 medium 1.0 mm ballpoints, a totally versatile BIC Biro pen for crisp precision writing or bullet journaling Classic design featuring the round blue and white barrel, a side clip and the signature clicking buttons Long live the BIC 4 Colours pen. Each refillable ink cartridge writes for an average of 2 km - that's a total of 8 km In 1970, French entrepreneur Marcel Bich introduced the BIC 4 Colours Original ballpoint, a pen that could change colours in a click without changing pens. This box holds 12 blue, black, red and green ink all in one pens. Ground-breaking then and legendary now, BIC fans around the world have been using the BIC 4 Colours pen for ages. Millions of BIC 4 Colours pens have been sold and they each hold a special place in someone's heart. For some it's their trusty pen, for others it’s a tool of the trade. Pupils and high school students couldn't take notes without it and artists depend on it for inspiration. It's a cinch to spot the timeless design of the BIC 4 Colours pen with the two-tone barrel, convenient clip for attaching it to your notebook or pocket, and the signature lanyard hole on top. A genuine BIC.