Swivel castor made from a pressed stainless steel bracket, fitted with a blue elasticated polyurethane on nylon core wheel 80 shore A hardness. These swivel casters range from 80mm - 200mm and have a capacity up to 250 Kg per caster. Elastic polyurethane on nylon centres are quiet and provide a soft cushioned ride and will not damage floors and can be used in food and pharmaceutical applications. Blue elastic polyurethane was once very expensive which prevented many from using. Our aim has to always offer value for money and this special 80 Shore A polyurethane is now become much more popular and the cost have come down. We recommend all food companies to use this very versatile castor you want be disappointed. Our 80 shore A polyurethane makes the tyres soft to the touch and as such provides a very smooth and cushioned ride and will help reduce any likely vibration.