Features: 1. Brand new and high quality. 2. Professional non slip coating, easier to make the stunner. 3. Both suitable for professionals and beginners. 4. The two sides of the pen have firm and heavy metal balls and unique buffer spring which greatly increase the weight, balance and stability. 5. The internal design of the ball pen core is leak-proof. 6. Both the two sides have elastic soft gum which can prevent the instep from falling and being broken. 7. More flexibility of your fingers and higher IQ with this spinning pen. 8. Do not think it is just a toy It can really write like any other ball pen. Specifications: 1. Coloras picture Note:The color will be sent out randomly 2. Material: non-slip coating plastic + metal 3. Length: 20cm 4. Ink: 0.5mm Package include 1 Spinning Pen