FrossKin is a registered trade mark of Phonotronics International Inc with ISO9001 certification for it's quality and systems for consistent quality management. All flip covers are made of very high quality compressed PU leather and magnetic closures. All covers are designed in such a way that they match your style and safety of your mobile phones together. Flip covers have folding feature to hold your mobile phone horizontally, which gives easy accessibility of mobile screen and firm grip to hold your phone and avoid from any damage on sudden fall from your hand. You do not need to replace mobile back cover to of your mobile phone to use this flip cover. You can easily insert your mobile phone into the flip cover.