Some basic specifications about Atop can be found on the "Product Page" of our official website. In terms of the product information including sizes, colors, shapes, and the introduction of basic raw materials, all these information are clearly listed on the website. We also keep the technical information recorded in the PDF, which is safer to store. If you are looking into more detailed technical information, such as the process craftsmanship and technologies, we warmly welcome you to come over to us, which is a more intuitive way.