<ul><li>1.5in & 3.5oz. Precision CNC manufactured metal desk toy with threaded grooves on the surface.</li><li>No batteries required, just a gentle hand spin. Spins for a long time and is almost silent.</li><li>Continuous flow of spirals creates full body optical illusion. Keep focus, stress relief and relaxes during work hours. Can also help ADHD OCD.</li><li>Not only a desk toy, but also a beautiful decoration. Hypnotic optical illusion is also a unique way to make an ideal gift for anyone.</li><li>Each toy is high quality and durability. We are committed to providing our customers with the better desk toys.</li></ul><br><br>

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