I'm selling this item because I received it but don't need it. According to the Kijima HP, based on the shape and specifications, I believe it's the Kijima "210-4971". I was told it was used on a late-model W800, but it seems it can also be used on early-model W800s, W650s, and W400s. There are some scratches on the vertical and horizontal stays on the front side from use, but they will be hidden by the bag, so I don't think there's a problem.