Nillkin Sparkle Leather Case for Meizu Pro 6 - Black The Nillkin Sparkle Leather Case series is made with imported leather and uses a hard clamshell design for the bottom and back to further protect your device. The functional PET window design allows you to use features like - answering the phone, checking the time, launching your camera and previewing messages without having to flip open the cover, which is both convenient and practical.