Features 1. Relieve Stress: Rotating the rotor and ball can help calm and relax the brain, reduce anxiety, and help you concentrate better. 2. Visual illusion display, seemingly floating using strings, and the ball seems to be able to move up and down. 3. Gifts: Made of high-quality materials that are timeless: metal and glass. Featuring a 12 inch (approximately 30.48 cm) spiral body and rotor, it can be used and viewed directly, packaged in a beautiful box, making it a classic Qwirly gift perfect for birthdays, holidays, and any other occasion. 4. Durable and Aesthetically Pleasing: When placed in urban apartments, offices, corridors, and outdoor gardens, the appearance is exquisite. 5. It can be placed under the dynamic wind chime to combine and enjoy. A 12 inch tail with a large ball size of 5cm and a small ball size of 3cm. Specification Material: Metal+Crystal Glass Color: Yellow, Purple, Blue, Green, Red, Lake Blue Size: 30 x 10 x 10 cm Weight: 350 g Package Include: 1x Spiral Wind Spinner