Dear business partner,It is nice to write to you. This is carl from United States of America. I am interested in placing your Long Blade Diving Fin - adjustable diving fins on the market.May I know more information about product such as:Material,Age,Model Number,What is the product-per-unit cost including shipping via Air Express to the United States of America?Thank you very much in advance.Regards and thank youcan we order a sample? Show More