... . Country of orginDongguan guangdong province of China Brand nameRubber feetSize40*32*30*M10*30 AppearanceroundcolourBlack or as your requirmentMaterialNR NBR SBR ... rubber etc. DuroSilicone about 20~80 Shore A; rubber about 40~85 Shore ATechnologyMoulding, punch, extrusionFunctionShock absorption, bufferCertificateISO ,FDA ,SGS,ROHS ...