Pilot Precise V7 Rolling Ball Pens feature a unique liquid ink formula that maintains consistent flowing strokes. With patented precise needle point technology, each pen has a ringed ink feeder for a smooth and even ink flow, and a visible ink supply lets you see how much ink is left. These pens come with 0.7mm fine point tungsten carbide tips and are available in a variety of colours (sold separately) to emphasise, organise, and colour-code information. An all-around quality pen - pick one up today! Precise V Pens write through layers of copies. Concentric ring ink feeder system delivers an even, continuous flow of ink, ensuring the same density of ink from start to finish. Pen offers a large, visible ink supply for longer writing capacity. Pens are nonrefillable.