Dear Mr. Smith，

Thank you for reading my email, and I am so glad to write to you so that you can know more about our products.

I knew that yesterday you have decided to choose the products from another company, and I also know that their products are very good in qualitiy and prize. But I still wish that you could know more about our products. And I can promise you that our products are as good as theirs, and even much better in size and design. I hope you can give me a chance to introduce you our prodcucts in details at some other time. I believe that is a win-win strategy.

I wish that I could get your reply as soon as possible. Best wishes !

yours sincerely