iRobot Roomba virtual wall and filter. I believe these are for the 700 series Roomba filters, specifically 760, 770, and 780, but please confirm compatibility yourself. Will be shipped via Yu-Packet Plus. The virtual wall's operation hasn't been confirmed, but it's in good condition. Please be aware that these are stored at home, so please consider this if you are concerned. Type...Robot No price reduction. Please comment directly if you have any questions.