1. Think about what qualities you want in your mind first. High quality often leads to high price and high budget first. 2. You can't place an order directly with the seller as soon as you see the desired Putian shoes. 3. For example, ask him, "What are your qualities, company level or currency?" After asking, you can ask him to buy records, so you will feel more at ease. 5. If you don't feel at ease, you can look at his historical transaction records, where there will be detailed instructions, where there will be customers' comments on the seller's idle fish, which is the App client of Alibaba's idle fish trading platform (iOS version and Android version). As long as members use Taobao or Alipay account to log in, they can realize many functions, including one-click resale of personal Taobao account "Bought Baby", taking photos of their mobile phones and uploading second-hand idle items, online transactions, etc., without complicated shop opening procedures. By downloading the new concept of "idle fish" APP, individual sellers can gain three advantages: greater exposure, more efficient circulation path and more advantageous logistics price, so that idle babies can make the best use of them at the fastest speed. In addition, the back end of the idle fish platform has been seamlessly connected to the Taobao credit payment system to ensure transaction security to the greatest extent.