Specifications:Help to relieve stress. Great for ADD & ADHD sufferers.Easy to carry, a good choice for killing time.Portable and fun, great for focus and deep thought.Use This Way: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 the fingers of one hand to stop and start spinning.Type: Hand SpinnerMaterial: MetalFunction: RotatingOccasions: Home, Office, School, etcFeatures: Stress Relief, Portable, Tip Spiral ToyFolded Size: 6cm/2.36" (Approx.)Unfolded Size: 7.5cm/2.95" (Approx.)Notes:Only for people above 16 years old. The hand spinner is very sharp, please be careful!The bearing of this product can not be washed with water! After playing a long time, soak the bearing with alcohol for cleaning.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Hand Spinner