Lumia 640 XL Case, Back Cover [CoverON Slender Fit Series] Slim Shell with Unique Image [Hard Plastic Shield] Phone Cover Case for Microsoft Lumia 640 XL - Free Birds, Inspirational Design Take the appearance of your Microsoft Lumia 640 XL to the next level with this [Slender Fit] (Free Birds) inspirational design case by CoverON! Bright and visually attractive design help you phone stand out. This case will not block or hinder any of your phone's cameras, ports, or sensors. Made of rigid polycarbonate plastic; durable and protective. 90 day manufacturer warranty