MPERO Collection 3 in 1 Tough Black Kickstand Case for Nokia Lumia 521 Made from only pure PC and ABS plastic materials. No mixes or blends. Produced from the highest quality materials for maximum strength and durability. Precisely engineered for a perfect fit and hard inspected to ensure superior quality. 3 in 1 Black Hard Case Cover with Belt Clip Holster/ Kickstand. MPERO is a protected trademark.