Specifications:This mini finger spinner is great for fidgety hands and ADHD sufferers, which helps relieve stress.Perfect size suitable for both adults and kids.Hold spinner in one hand and use the other hand to spin it rapidly.It will spin indefinitely with your small continuous strikes.With practice, you may only use the fingers of one hand to stop and start spinning.Advantages:1. Great for anxiety, focusing, ADHD, autism, quitting bad habits, staying awake.2. Easy to carry, small, simple and fun, also effective for focus and deep thought.3. Perfect finger toy to keep your hands busy or to just play with. It feels nice in the hands and it is silent so you won't be bothering anybody.4. Interior and exterior anti-dust design to protect the bearing. As its know to all that the dust on the bearing will effect its service life and rotating time.Type: Finger SpinnerShape: Tri DartQuantity: 1 Pair (2 Pcs)Material: AlloyFeatures: Mini Finger Spinner, Decompression Toy, Tri Dart Hand SpinnerWidth: 9cm/3.54" (Approx.)Notes:This product can not be washed with water! After playing a long time, soak it with alcohol, for cleaning the bearing.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.