The Cristal Xtra Smooth Ball Pen is The Pen America Grew Up With. It has proven reliability, writing up to 35% smoother than BIC's traditional ballpoint ink. It features a roll-proof hexagonal-shaped barrel so it wont roll off surfaces. The clear barrel offers a visible ink supply. Pen Sub-Brand & Product Family: Cristal Xtra Smooth; Pen Type: Ballpoint Pen; Pen Style: Stick; Pen Tip Type: Conical.