> The Pilot Hi-Tec C is one of the finest gel ink ball point pen, making it ideal for the purpose of fine art drawing, Chinese characters and for users with small handwriting to write cleanly and precisely. > This is made possible due to 2 technologies: the bio-polymer gel ink and the super fine Hi-Tecpoint. > Tip: There is 3 dimples on the fine stainless steel pipe with a ball mounted in between. The dimples will support the ball and reduce the friction with the surface during writing. Thus, it can write out with fine width stroke. > It is refillable with the BLS-HC5.