Model Number: hand Spinner-#2520 Brand Name: shine peak Key Specifications/Special Features: Size: 6.5 *6.5cmColors: white and blackMaterial: plasticPackage included: 1 pieceGreat for fidgety hands, ADD and ADHD sufferers helps relieve stressPerfect size suitable for adults and kidsEasy to carry, small, simple, discrete and fun, also effective for focus and deep thought, SLA technology, laser industrial molding technology, resin materials, accompany you year by yearUse 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 one hand only using the fingers of one hand to stop and start spinning.