ABS plastic frame is durable against external forces. Also wear and tear, water and detergents. The wheel has a unique locking system that is very beautiful and the operating force is significantly lighter than similar products. Rubber treads are soft, ride smoothly, non-marking and make less noise.

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.