A real bargain for you: This one is strong and sturdy. Manganese raceway and Dust proof ring are not something you'll see everyday. This one will last very long at minimum maintenance effort. The wheel is soft and protected by 2 covers.
Smooth swiveling by double bearing in the swivel head. Hi-quality PU that is both cushion and wear resistant. Besides the caster can withstand water, oil, grease and light chemical.