The customer is from Australia and is a retired community worker. This purchase is to enrich his retirement life. The customer's goal is to be able to grow some green leafy vegetables and salads indoors in his spare time, especially in the cold and long winter when vegetables cannot be purchased at a cheap price. According to the customer's indoor available area, we calculated that 3 sets of hydroponic tower products were needed for the customer, and according to the customer's indoor height, we recommended our 10-layer tower products to the customer. We showed the customer the types of plants that our products can grow. The customer thought that using this product to grow so many types of crops would meet his needs, so he readily placed a sample order.