High quality, cooler,stronger and more durable.3-5 mins average spins Reduce Stress,killing bad habbits or killing time.Great hand spinners fidget toy for spinners, Anxiety, Focusing, ADHD, Autism, Quitting Bad Habits, Staying Awake,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. EDC latest nine gear (teeth) Linkage finger tip gyro. Simply flick and spin for hours with one or two hands Each Gear Could Spins.All Parts Removeable.