High Grade Brass Copper Coin Handle otating Decompression Manual Fingertip Top description: Diameter: 5cm Weight: 60g The rotation time is extended by 2-4 minutes. The two-layer structure is easy to carry, simple, independent and interesting, and it is also effective for concentration and deep thinking. Mechanical decompression spinner. Considering the inertia of all gears, it rotates very well. How to use: Hold the turntable with one hand and rotate/stop with the other hand. ADHD, increase ADHD and autism, improve the concentration of children and adults. This is a very suitable toy to get rid of annoying. It is very suitable for scheduling, meditation, arranging time, getting rid of bad habits and having conversations. Smooth, strong, well-made and full of charm. Very strong and well processed. Permanent disassembly and rotation are fun The package includes: 1Gyro toy