Hello, there are many people buying fitness cards now. Baidu knows that they usually ask questions. I suggest you apply for a fitness card yourself, with a brief introduction and photos, and then list it in some second-hand markets. For example, websites in People.com, Jiji.com and Taobao.com are listed for sale in the second-hand market. Generally, it is your fellow villager who makes the purchase, and marks the price and product introduction.