Zahnrad iRobot Roomba 500er Serie 17 Zaehne (E8LSHB9A9) by gaebs_urech
Amazon.com - iRobot Roomba j7+ (7550) Self-Emptying Robot Vacuum – Identifies and avoids obstacles like pet waste & cords, Empties itself for 60 days, Smart Mapping, Works with Alexa, Ideal for Pet Hair -