For the Lenovo Tab B10 10.1 inch. Please be sure to check the size of your device, as the size varies depending on the release date of this series. The compatible tablet size, as measured on the case, is 239 x 167 x 8.5mm. This is a rough measurement, so there may be an error of about 1mm. The cover also has magnets built in, so I think it supports automatic shutdown. I've added photos of the buttons.