CoverON Slim Hard Case for Nokia Lumia 521 with Cover Removal Tool - (Blue Skull) For Nokia Lumia 521 Skull Case Cover Made of reinforced hard plastic with a thin slip-free rubber feel coating for better grip Constructed to be slim and lightweight; will not add bulkiness to your phone Personalize the look of your phone - unique spectral design case Includes case removal pry tool - 90 Day Warranty on CoverON cases