Cheap castors don't work on hard floor

It looks nice when assembled, but the castors just scrape across a wood or laminate floor rather than roll well. I tried multiple surfaces and it worked ok on flat, bumpy carpet, but it's advertised for a medical clinic, which usually has a hard, cleanable floor. The first one I ordered had a crooked weld where the castors slipped in so the castor sat crooked and scratched my wood floor at home where I put it together. Pay more for better wheels.

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