Thank you for viewing! I am selling a set of spinning pens (4 pens). Colors: Red, Blue, Yellow, Purple set Easy to handle even for beginners, The length and weight have been adjusted. This is the perfect item for practicing pen spinning. When you remove the cap, it's a black water-based pen, and surprisingly, it writes well. You can find many pen spinning techniques on YouTube by searching for keywords like "pen spinning," so please refer to those. Also popular as gifts, and moving your fingers can be expected to activate your brain! Spinner Pen Spinner Pen Pen Spinner Spinning Hand Magic Baton