Can the number of exposure hand switches be discounted?

A customer saw that we have an exposure hand switch on the website, and would like to ask about the specific specifications and prices. I sent the product information of the exposure hand switch to the customer, and asked the customer how many gears of the exposure hand switch do he need? How many do you need? Because our exposure hand switch has many models, it is divided into first gear, second gear and third gear, and the quantity will also determine the final price. The customer said that they wanted 20 exposure hand switch, but asked the user what kind of specific needs, and then gave me a reply.