Kobo has been making e-readers for over ten years and have released a wide array of e-readers. They have always relied on selling accessories, such as
Kobo Sage eReader Malaysia Club for Rakuten Kobo
Kobo Sage PowerCover - Black - Melbourne Mobiles
Kobo Sage PowerCover Case - Black — Rakuten Kobo eReader Store
Kobo Sage PowerCover Case - Black — Rakuten Kobo eReader Store
Kobo Sage SleepCover Case, Light Green, Sleep/Wake Technology, Built-in 2-Way Stand, Vegan Leather
Kobo Sage PowerCover Case - Black Rakuten Kobo eReader Store United States
Kobo Covers Cases, Kobo Sage Power Cover, Case E Book Kobo
Sage PowerCover Manuals / Datasheets / Instructions - Manuals+
Buy [SleepCover] Kobo Sage PowerCover Online in Singapore
Kobo Sage PowerCover Case, Black, Charges Your eReader, Sleep/Wake Technology, Built-in 2-Way Stand, Vegan Leather