0.7 mm black refill for the Pentel Selfit.
Japanese students have long been subject to intense writing periods, thus the development of many squishy ergonomic gel grips. The Selfit grip contains over 4000 gel beads and pieces to create an ergonomic grip that molds to your hand. It can maintain that shape even after you let go, giving your hands comfort that is perfectly customizable to you. The grip can re-align into a new shape with each new hold. Available in different grip colors for happy studying.