Amazon.com - Seven-first Robot Vacuum Cleaner Sweeping, Quiet Slim Auto Robotic Vacuums Lazy Household for Cleaning Pet Hair, Marble, Ceramic Tiles and Hard Floors -
Robot Vacuum Gets Stuck Between Chair's Legs and Eerily Spins It Around - video Dailymotion
Amazon.com: Ezprotekt 2 Inch Chair Risers with Screw Clamp, Heavy Sofa Couch Tables Bed Furniture Risers, Only fit Right Angle Chair Leg, Adjustable Width from 0.8''–1.6'',Supports 20,000 lbs (Gray, 4 Pack) :
Why your Roomba takes a weird path to keep your floors clean - CNET
Roborock and chairs with legs of steel pipes? - Roborock forum
Furniture Risers - Help Cleaning Droids Catch More Dust Bunnies Under the Sofa : 8 Steps (with Pictures) - Instructables