Ideal for people trying to quite nail biting, smoking, leg shaking and all type of attention disorder issues. Ergonomic curved shape design for hand comfort and long term usage. Simply flick and spin for hours with one or two hands High Speed Hybrid Ceramic ball in the center to ensure the smoothest rotation and consistency. Great Toy For Fidgeters, Anxiety, Focusing, ADHD, Autism, Quitting Bad Habits, Staying Awake No Repair, Oil, Maintenance needed! Use it right out of box. All 4 bearings are removable for future upgrades, after market modification and customization Restless mind and fidgety hands? This spinner is the solution! No more 3D printing and edge sanding! Durable ABS frame construction with rounded edges, complimentary cap cover How to Use - Hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely with practice,spinners can be spun using one hand only using the fingers of one hand to stop and start spinning

Ideal for people trying to quite nail biting, smoking, leg shaking and all type of attention disorder issues. Ergonomic curved shape design for hand comfort and long term usage. Simply flick and spin for hours with one or two hands High Speed Hybrid Ceramic ball in the center to ensure the smoothest rotation and consistency. Great Toy For Fidgeters, Anxiety, Focusing, ADHD, Autism, Quitting Bad Habits, Staying Awake No Repair, Oil, Maintenance needed! Use it right out of box. All 4 bearings are removable for future upgrades, after market modification and customiza