DescriptionThere are colorful cartridge refills for neutral pens, suitable for manykinds of neutral pens, very practical. Easy to storage and portable tocarry to school, you don't need to worry about safety even if they areused by children, with various colors, these Pen Refills can effectively meet yourdaily needs.Features- Color: mixed color -Material:Plastic - Size: 12.90X0.36X0.36cm/5.07X0.14X0.14in -Made of high grade and sturdy plastic material, makes them durable and not easy to leak. -There are large quantity, satisfying your long-term writing and study requirements. -These Pen Refills are lightweight and small, you can take along and won't cause you much pressure. -Easy to replace and use, different colors for free choosing according to actual needs. -Premium-quality ink, with high color rendering and flows evenly, good writing experience.