High quality child-friendly gel pen set. Non-toxic, acid-free pens are great for all ages, perfect gift to help get those creative juices flowing. Longer and smoother ink. Longer ink cartridge than most pens, allowing you to keep on using the pen again and again. Smooth flow of ink, dries quicker than most gel pens, to prevent any smudging while you are using the pens. Fine and durable tips: 0.8-1.0mm fine durable tips ensure that the ink flows as smoothly as your ideas. You'll easily be able to draw detailed designs, as well as colour things in hassle-free. Convenient case for storage. The gel pens come ready packed in a fold-up case that easily snaps shut. You can easily store them in backpacks or shelves. Also this fold-up design is easy for you to choose the colour you want.