Pilot Dr. Grip Center of Gravity Retractable Ball Point Pen, Medium Point, Black Ink, Grip Color May Vary, Single Pen (36184) Designed with perfect weight distribution for comfortable, balanced writing Commended for Ease-of-Use by the Arthritis Foundation Wide double layer comfort grip and balanced gripping axis reduce writing stress Single pen with black ink and a medium 1.0mm point Retractable and refillable with Dr. Grip Center of Gravity model # 77271 refill - sold separately