... standing and sitting or keep the same gesture for a long time, such as office worker, driver etc ... cherish their health, pursue healthly life, like to build a powerful body. Especial good for middle-aged friends ... Usage 1. Wear walking 10-15 minutes a day, every day several times 2. We suggest ... 3. Shoes need cleaning, wipe the uppers with a clean, cotton cloth, and reused when the leather dry ...