Spin it but be careful not to spin it too fast!
- NEW & IMPROVED TIGHT CONCAVE CAPS + High Speed Silicone Nitride (Si3N4) Hybrid Ceramic Bearing In Center. Si3N4 is generally considered highest grade ceramic for these bearings, higher than Zirconium Oxide (ZrO2) and steel bearings, + 3 Steel Counterweight Bearings Outside. These are removable.
- Great Toy For Fidgeters. Flick And Spin For Hours With Just One Or Both Hands
- Great For Anxiety, Focusing, ADHD, Autism, Quitting Bad Habits, Staying Awake.