Pilot V7 Hi-Tecpoint Roller Ball Pen with Cartridge System - 2 Black Pens, 4 Black Cartridges, (9000021856)Refillable product through cartridge. Unique ‘3-Dimple Tip Technology’ from Japan for precision writing. Pure liquid ink for smooth Skip free writing. Patented ATT System to ensure instant start every time. See through ink reservoir which indicates remaining ink level.Fine tip of .7 mm which delivers .4mm width of stroke.Pilot Hi-Tecpoint V5 Pen, Black (Pack of 12)the famous pilot v5 pen is here. contains 12 pens