LED Light Hand Tri Spinner Specifications: Small coefficient of friction. The spinning time is 2-3 minutes. A good choice for killing time, helping relieve stress. Perfect size, suitable for adults and kids. Using great bearings, the middle one is a hybrid ceramic bearing, for ultra smooth spin. High performance bearing for extremely fast and long spin time. How to Play: 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. Type: Hand Spinner Material: Aluminium Alloy Suitable Age: Above 3 Years Old Function: Spinning Occasions: Home, School, Office, Library, etc Features: Focus Toy, Anxiety Reducing, Stress Relieving, Portable Size: 7.5cm x 7.5cm x 7.5cm/2.95" x 2.95" x 2.95" (Approx.)