This cover is compatible with PocketBook 17.78 cm (7-inch) devices, including the PocketBook Era and Era Colour. The lightweight and stylish flip cover provides reliable protection for the screen of your PocketBook device. It is easily and simply attached directly to the back of the e-reader, but does not cover it completely. This makes the protective cover an absolute flyweight. The flip cover supports the sleep cover function of the e-reader and ensures that the battery of your device lasts longer until it needs to be recharged. When the protective cover is closed, the device is automatically put into sleep mode and the e-reader is reactivated when it is opened.