1. Precision production: This stainless steel balance ball toy is composed of high quality stainless needles and precision balls to ensure its durability and stability, and can be used for a long time. 2. Creative design: unique pendulum cradle design, into the modern geometric elements, showing the extraordinary aesthetic sense of craft. In addition, the Iron Man model makes it more gratifying and makes people fondle admiringly. 3. Practical leisure: This toy can not only help to improve attention, release pressure, but also help to understand some of the basic principles of balance in physics. 4. High color value: elegant silver gray, high gloss, can be used as a beautiful scenery of your desk or living space, improve your quality of life. 5. Applicable to a wide range of people: whether it is a prop for children to understand science, or for adults to decompress, or as home decoration is an excellent choice. Specifications size:as shown in the picture Material: Stainless Steel Origin:Mainland China Conversion:1inch=2.54cm, 1cm=0.394inches package:1pcs Stainless Steel Balance Ball Toy Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may not reflect the actual color of the item.