Superior than most of Light duty China caster. Steel bracket is more sturdy, durable. PP wheel is formed of excellent material that can last very long. PP wheel is hard so it will not be deflated under loads in long time.
Superior than most of small China caster, nearly archive the same level with Japan ones. Sturdy rubber that is hard to break, hard to wear out by daily use. This is one of the most success product line of Phong Thanh.