Make from, Iron, Copper, it is enduring and resistant Note: Disconnect power to the stove ranges before installing the surfaces component control switches Ranges switches 316436001 also replace 316021501, 5304506425, 1155395, 812448 The switches is to turn on / off and adjust cooking The hole position embedded design and standard wiring interfaces make installation very This 316436001 surfaces burners infinitely switches is designed to control the large 8inch stove burners