4 Ink colors: Each gel ink pen has 4 ink colors, you can mark the important information or text in different colors on paper or in a book, very suitable for students to take notes. Retractable design: The retractable design of these 4-color ballpoint pens allows you to quickly and easily change the ink color, convenient and practical. Specifications: Material: plastic Shell color: as picture shown Ink color: red, black, blue, green (0.5 mm) Quantity: 6 pieces Package includes: 6 x Multicolor ballpoint pens Notes: The colors may exist slight difference due to different screens. Manual measurement, please allow slight errors on size. Package content: you will get 6 pieces of multicolor ballpoint pens in different shell colors, each pen features 0.5 mm 4-color ink refills, which can meet your daily study or work needs Comfortable to hold: these 4-color retractable ballpoint pens are not only beautiful and simple in appearance, but also comfortable to hold, delivering a smooth writing experience for every user Smooth writing pen: the ballpoint pen with 4 colors 0.5 mm refills writes smoothly and provides solid writing lines, the ink doesn't bleed or smudge your paper; It is very suitable for drawing art projects and color coding text 4-in-1 Multicolor gel ink pen: each ballpoint pen has 4 different ink colors, including red, black, blue and green, 4 refills are in 1 pen, so you can easily switch between all 4 colors, bringing a lot of convenience to your daily use Practical and thoughtful gift: this multicolor ballpoint pen set is an useful writing accessory, it is a nice gift choice for students, teachers, office workers, librarians, etc., and a delicate party favor for adults and kids