The caster is designed based on America's style so at first glance it's not so bad. But if you look closer, the Zinc coating is just so so, bracket steel & PVC wheel is not good and sharp. However, price is great for a ball bearing caster.
CNC-machined precision raceways and precision tapered secondary load bearings combine to make the casters rugged and easy swiveling. With PU tread wheel, the casters will create less noise and help protect your surface.