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.
Optimum leveling ease occurs at 50% of 4 casters total capacity.; Patent protected anti-vibration axles, ratcheting mechanisms and hardened steel raceway sleeve.; Cast aluminum body with a powder coat finish in ivory.