Just acceptable quality: steel bracket is thin with just (again) average bearing & wheel quality. However the price is cheap and you can still be happy if using the caster for light duty as the ball bearing will offer easy manuevering.
A Compact and elegant caster. The wheel is slim, round and with precision bearing so it will roll at ease. Plastic bearing hubs help prevent dust, thread and water to intrude and help improve life time of the caster