Gel ink refill designed for PARKER ballpoint pens PARKER QUINK gel ink offers extra smooth writing on paper Vibrant gel ink captures your thoughts in color Medium tip for everyday writing Includes 2 blue ink refills each measuring about 3.6" x 0.5" Smooth and vibrant, PARKER QUINK ballpoint pen gel ink refills make writing a pleasure. Refill makes it easy to replace ink when it's time to refill or swap out ink colors.