A. Product Introduction: This is a chair elastic band designed for children or adults with the habit of shaking legs. It is made of thermoplastic elastomer (TPE) material, which is elastic, durable and has a relatively long service life. You can fix this elastic band on the chair legs. It may relieve the fatigue caused by sitting for a long time and can also be a useful tool to help children focus more on learning. B. Product Features: 1. Color: There are multiple color options. 2. Material: TPE 3. Dimensions: 30.00×5.00×0.10 cm / 11.79×1.97×0.04 inches 4. Made of TPE material, it is comfortable to use, not prone to wear, and suitable for many classroom seats. 5. It has good versatility, is suitable for various types of chairs, and can help relax the legs and feet. 6. It may be beneficial for children or adults with ADHD, enabling them to focus better on learning or work, soothe emotions and improve efficiency. 7. It is easy to clean and maintain. This chair elastic band can be hand - washed or machine - washed and can be reused. 8. This colorful chair elastic band can be a nice gift for friends or family. C. Product List: 10 chair elastic bands