Just acceptable quality: steel bracket is thin and average wheel quality. The caster is not too durable as it has only one ball bearing raceway in swivel head so if overload or by foreign force the bearing ball may fall out.
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.