Amazon.com: Wood Transition Threshold Ramp for Robot Vacuum, 6/2.3'' Rise, Portable Step Slow Down Ramps for Bicycle Motorcycle Car (Size : 30×10×6cm(11.8×3.9×2.3in)) : Home & Kitchen
home - How can I work around high doorway thresholds to get a robot vacuum to get access to more rooms? - Lifehacks Stack Exchange
Single sale For iRobot Roborock Roomba Xiaomi Robot Vacuum Sweeper Threshold ramp Climbing Step Ramp Climbing Mat - AliExpress
Custom Height Door Sill Ramp / Ramp for Robot Vacuum Cleaner / Robotic Vacuum Cleaner / Vacuum - Etsy Norway
Faith mat - What do you do when your robotic vacuum can't quite make it over the threshold to one of the rooms? Soft threshold doorway ramp - Best assistant for robot
Vacuum Robot Ramp / Door Ramp - flat bottom by maker4fun | Download free STL model | Printables.com
Robot-vacuum ramp by Dr.Peter | Download free STL model | Printables.com
Made a detachable ramp for my robot vacuum cleaner : r/functionalprint