Designed exclusively compatible with 6" Kindle Paperwhite 1 (Kindle 5th Gen) / Paperwhite 2 ( Kindle 6th Gen) / Paperwhite 3 (Kindle 7th Gen) (MODEL NUMBER: EY21 / DP75SDI) (2012-2016 Release 300 PPI Versions and Built-in Light). PLEASE CHECK THE MODLE BEFORE PURCHASING. Will NOT compatible with 6.8" Kindle Paperwhite 11th Generation 2021 or Kindle Paperwhite Signature Edition, 6" Kindle Panperwhite 10th Generation 2018 ( MODEL NUMBER: PQ94WIF), Kindle 10th Generation 2019 (MODEL NUMBER: J9G29R), Kindle 2016, Kindle Oasis and other model. With Smart Auto Wake/Sleep Feature. Wake or put your device to sleep by opening or closing the cover. Made of hard plastic covered with premium synthetic leather material. Microfiber soft lining interior perfectly protect the screen of your device.