Carefully Zinc coating enhances rust and corrosion resistant. Apply the new Steel core PU wheel - the caster look quite strong but still elegant. The quality is assured as it is made by number one caster manufacturer of Viet Nam.
Pneumatic tire absorbs chock on uneven floor by cushion of compressed air. Absolutely recommended for hospital, resort, hospital, labs, outdoor, etc. However, price is steep: 2 - 3 times higher than the domestic solid rubber one.