Bests & Worsts Reviews from Amazon

I bought these before looking locally. When I looked at the wheels them selves I was appalled that most of the eight wheels under each pad were out of round and had high molding ridges where most of the contact with the floor would be at highest pressure. Damages the floor. I gave up on these and went to SeBo's down the road and bought the EXACT same part number SherperdHardware 9601 in different color boxes. These in the black boxes are the "real deal", The pads have 10 flat bottom rollers. Connecting web seems a bit stronger. No comparison in smoothness on the floor. They are to be put under a washer and dryer, so loads aren't excessive, but I just put down new floors and would like a chance for them to survive a machine maintenance issue. I made a comparison picture. Good on Left, Bad on right.