Features: Great for fidgety hands, helps relieve stress. Effective for focusing and deep thought. A good choice for killing time, quitting bad habits like smoking, biting nails and shaking legs, etc. User-friendly, no repair, oil or maintenance needed. Environment friendly metal frame is sleek and unbreakable. It spins very smoothly and quietly. Can be used at everywhere like park, school, airport even in a car. Perfect storage bag, enough room for containing a spinner and a pair of earphones, just put the bag in pocket.