In-House Dynamic Testing as Per International Standards, Our Durability Test Imposes up to 150,000 Cycles on Casters, Wide Range of Drop Weight & Drop Height used for Impact Tests, Corrosion, Cold Whether & Functional Tests are also being conducted, Provides sufficient traction, Conventional PU castors will hydrolysis after long-term exposure by the addition of water in the air. But our Highly Hydrolysis Resistant PU Castor manufactured on our Patented PU Castor Manufacturing