Glass thickness must be more than 0.12".
Window Cleaner Robot with Ultrasonic Water Spray and Remote Control
Window Cleaner Robot with Ultrasonic Water Spray and Remote Control High Glass
Window Cleaner Robot Vacuum with Ultrasonic Water Spray and Remote Control
Window Cleaner Robot w/ Ultrasonic Water Spray & Remote Control for Window Glass
Window Cleaner Robot w/ Ultrasonic Water Spray & Remote Control Indoor Outdoor
