Acroball Pen contains an innovative hybrid ink for out-of-the-ordinary writing flow and smoothness. Retractable and refillable, the Acroball is equipped with an ergonomic grip so that it can be held well in the hand and a tungsten carbide nib which cannot be deformed and will not wear out. Ballpoint pen also features a fine point (0.7mm), black ink, white barrel and fashion accent colors.