Plastic mesh bag. Items purchased by users on Duoduomaicai are usually placed in plastic baskets at self-pickup points. In order to prevent vegetables from leaking or being damaged, they are packaged in plastic net bags, such as potatoes and onions. "Duoduo Buying Grocery" is an affordable, secure and convenient grocery shopping service launched by Pinduoduo in response to the changes in consumers' family lifestyles.