Microsoft Lumia 550 Case, CoverON HexaGuard Series Protective Hybrid Hard Phone Cover for Microsoft Lumia 550 - Teal on Black CoverON HexaGuard Series protective hard hybrid case for the Microsoft Lumia 550 Hard polycarbonate outer layer combined with a soft flexible rubber silicone inner layer Enhanced "basketball" grip on the back Shock absorbing and protective - yet thin and lightweight compared to other dual layer cases 90 day manufacturer warranty