This listing is for TWO pre-owned Oura rings. Both are size 8, Heritage style. One is Gen 2, the other is Gen 3. Each have some physical signs of wear but are functional. Missing the charging docks. I originally upgraded from the Gen 2 to the Gen 3 and have since upgraded to a new device. Poshmark only lets me upload one video in the listing. Let me know if you would like additional photos/videos.