Features: Durable premium brass body and hybrid ceramic bearing provide smooth, fast and constant long-time spinning. It feels nice in the hands with its metal texture and it is almost silent so you won't be bothering anybody. A good choice for killing time, helps relieve stress. Great for fidgety hands, ADHD sufferers. Especially helpful to relax effectively when you are all nerves. It's fun and interesting, also effective for focus and deep thought. Mini enough to put in your pocket, just have fun anytime. Perfect fidget toy to keep your hands busy or to just play with.