PU Leather Mango Series S-view Slim Style Cover Folio Case Pouch For Samsung Galaxy S4 i9500/i9505 With Auto Sleep/Wake Function - Green Used imported high grade environmental PU material.Feel smooth and has Pearl luster With intelligent window function.Not need opening, you can preview the date, time, missed calls, unread SMS tips etc Not need opening, you can slide the windown to pick up the phone, check information, control the camera and turn on the music Perfect fits for Samsung Galaxy S4 i9500/i9505, all controls are freely accessible Also a high-grade PU material inside.Vacuum cleaner and dissipate heat is good