How does the salesman explain roller skates? I sell shoes.

For example:

For children, parents pay attention to children's healthy exercise, so in terms of safety performance. For example, the load-bearing quality will reduce the vibration, and the hardness of the tool holder is high, which is not harmful to the feet developed by children. There is also the comfort of the shoe lining and the degree of ankle protection. And the durability and practicality of the brakes. Other than that, it is the appearance. . . The kind that children like, of course.

If they are adults, they are divided into professionals and amateurs. If you are a layman, it is basically the same as above. If you are an expert, I suggest you don't say much. . . People know that the performance of shoes may be much more than you know. If you talk too much, people may laugh behind your back. I met such a person, an amateur who sold fire and blew smallpox with me! ! ! I am speechless. . .