Expand your creativity instantly when you use the Chameleon Fineliners Color Blending Fineline Pens. Featuring a patented dual-ink system, these incredible pens include ink in both the pen portion as well as the cap. Coming in 48 color options, you simply switch the cap, wait a few seconds, and begin to create. The colors instantly and seamlessly blend, giving you virtually endless options for your creativity to soar. You can even mix and match the pens and caps, putting three colors into one for an exceptional blend. The longer you fuse the pen to the cap, the longer the blend. Amazingly, the 48 different colors and caps produce a whopping 1128 different color combinations. Use it as an everyday pen to add some fun to your writing, or create anything you can imagine through drawing, doodles, coloring, and more. Featuring a high-quality fine point Japanese 0.3mm metal clad tip, the Fineliners offer total precision with super smooth performance and steady flow of ink.