PocketBook Shell Cover Shell line covers are available in five color variants: black, grey, suppressed blue, light brown and red. They are made of high quality, resistant to damage and pleasant skin imitation. The three covers have subtle grooved, two patterns – light brown and black to illusion resemble real skin. The plastic case is firmly attached to the reader and the front of the cover guarantees protection of the screen. The magnets built in the case prevent accidental opening. PocketBook Shell cases support the “sleep” function of the reader, which saves the battery even more. After the cover is closed, the special magnet automatically switches the device to sleep mode and awakens it again after opening.