Advanced Dearing Turntable Gear Linkage Manual Rotating Fingertip Top Toy description: Gear linkage design, each gear has one or more bearings. Brass gear + aluminum frame + high-quality bearings. diameter:6cm weight:45g The rotation time is 2-4 minutes longer. Double-layer structure, easy to carry, simple, independent and interesting, but also effective for concentration and deep thinking. Mechanical decompression spinner. Considering the inertia of all gears, it spins 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 attention of children and adults. It is a toy very suitable for getting rid of irritable people. It is very suitable for arranging, meditation, timing, quitting bad habits, and bringing up conversations. It is very smooth, strong, well-made and full of charm. It is packed in a zippered box for protection. Very strong and well processed. Dismantling and spinning forever are fun Package includes: 1Gyro toy