... SBR EPDM, recycled rubber etc.DuroSilicone about 20~80 Shore A; rubber about 40~85 Shore ATechnologyMoulding, punch, extrusionFunctionShock absorption, ... in advance and then balance before deliveryThe size of Rubber feet also Can be Customized, If you need ... can provide all kinds of Rubber feets, rubber gasket ,rubber grommet, rubber ring,rubber sleeve,rubber bushing, rubber part,etc, can be any ...