【Creative Design Fun to Play】Our new built-in steel ball design gives you double optical illusion joy, spinning spiral & fascinating suspension effect. Simply lay your finger at the bottom of the optical illusion ball and rotate it. The fidget spinning ball continuously rotates creates magical illusion of steel ball floating. 【Stress Relief Toy】Fun and decompression desk kinetic toys, which relief you from boredom and the stress of study or work or anything else. Anti-ADD, ADHD, OCD, anxiety, autism and clear your mind. Enhances attention and focusing. Endless magic charm. 【High-Quality & Safe Material】Solid aluminum alloy process by machine which is more stronger and durable. High-quality bearing makes it spinning longer and more quieter. Anodized surface makes a great sense of touch when play.