埃及采购需求：护膝、护膝、护膝、膝盖保护器、膝盖保护、铰链式护膝、护踝

I'm interested in your range of knee supports and would like to get a clearer picture of your pricing structure. Could you provide me with your prices, along with any volume discounts or available sizes? It would be great to understand the options you offer. Additionally, if you have any specifications or details about the materials used, that would be super helpful. I'm looking forward to your prompt response, as I'm keen to move forward with this procurement. Thanks!