The PenAgain works for both right and left handed writers. Your side fingers are used only to guide as you write, no need to grip tightly with your fingers. The natural weight of your hand provides a downward pressure as you write. This pen is refillable and each pen comes with 2 medium 1.0mm black ink refills. The pen has a soft finish for a better grasp and an innovative ergonomic design. It is retractable and is a compact size so it fits well in pockets or bags. Set of 4 pens. Blue, Red, Black, Silver. All have black ink.