Fabricated Steel Sprung Loaded Swivel Castor Top Plate Fixing 200mm 65 Shore A Black High Elastic Natural Rubber Tyred Wheel With Aluminium Centre Ball Journal Bearings Fitted With A 600kg Red Polyurethane Spring But Load Capacity Is 500kg At 4Kph And 200kg At 10Kph Reach Compliant Also Pah-Free Rubber To Confirm To Eu-Directive 2005/69/Ec