This is a special cover for "MD notebook" by a company called "Midori". Please see the link below. www.midori-store.net/smp/item/49360006.html?origin=pla&ptid=1643549447736&productid=49360006&gclid=CjwKCAjwsfuYBhAZEiwA5a6CDKN5BY1oLhnm5R0xrbYfHyl_FkExtyfhmKVu6H9qkyMWG3WGrw5GORoC5p4QAvD_BwE