This is a set of two Dual Virtual Walls for Roomba. They are from the 2020 and 2019 Roomba e5 and i5 models. They are brand new, unopened, and have never been used. *Basically, I will not offer discounts. I will gradually lower the price over time, so if the price doesn't meet your expectations, please purchase when the price drops. I may delete inquiries about discounts. I am also selling on other flea market sites, so the item may disappear suddenly. In the event of simultaneous purchases, the first buyer will be given priority. If you happen to purchase before the item is removed, I will contact you in that case, so please understand.