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.
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.