Fingertip gyro is a hot toy, made of stainless steel, bronze, titanium, or stainless steel. With the opponent's toys on the player's enthusiasm, this products are very hot in Europe and the United States market. Many people think that this product can help them quit smoking, ADHD, obsessive-compulsive disorder, anxiety, post-traumatic stress disorder, insomnia or meditation. Package included:1pc Material: Electroplating aluminum alloy Color: Red + Yellow Weight: 61.3g Diameter: 60.93mm*13.92mm Bearing: Silicon nitride bearing