Box of 50 blue Bic Cristal Large ballpoint pens with blue ink. The Bic Cristal Large ballpoint pen has a broad tip of 1.6 mm and a line width of 0.42 mm. The wide 1.6 mm tip produces smoother, denser, and darker lines compared to pens with a thinner tip. The Bic Cristal ballpoint pen is ideal for everyday use. Bic Cristal ballpoint pens are affordable and offer good writing quality. The pens feature a ventilated cap in the ink color. The ink level is visible as the pens are transparent.