Portable Size: Metal finger gyroscope toy is small in size and light in weight, easy to carry and can be played in home, office, bus, etc. Reduce Pressure: Fingertip gyroscope toy can release stress and reduce anxiety, which is very suitable for people with ADD and ADHD. Easy Play: Hold the center sides of the gyroscope with one finger and rotating with the other hand, after practice can be used with one hand. Widely Use: Decompression gyroscope can make people focused and thoughtful, suitable for children, teenagers, adults, seniors, etc. SERVICE GUARANTEE: If you are not satisfied with the Portable Fingertip Gyroscope Toy we received, you can contact us by email at any time, we will reply and solve your problem in time, and strive to provide better service. Specification: Item Type: Finger Gyroscope Material: Metal Size: Approx. 5 x 5 x 2cm / 1.97 x 1.97 x 0.79in(1-2cm) Appropriate Age: Over 3 Years Old Package List: 1 xFinger Gyroscope 1 x Storage Box Note: Please allow 12cm error due to manual measurement. Thanks for your understanding.