Both front and back sides are made of 304# stainless steel trips. Old-style cooktops usually use plastic at the back side, which is easy to be damaged by aging. Both front and back sides of this gas cooktop is made of stainless steel, it is stronger, more anti-wear and safer and has a longer service life. Pan Support Material:Heavy-Duty Cast Iron. Control Type: Bakelite Knobs Control. Ignition Type: Electronic pulse ignition. Voltage: 110V, 3-prong plug. Cable Length: 4.5 Feet. Eascookchef Gas Cooktop 12 inch, 8mm Tempered Glass in Black. 2 Burners Power: 10,500 BTU + 5,000 BTU. Fuel type: Natural Gas (NG) are preset and can be replaced with Liquefied Petroleum Gas (LPG) nozzles. 1 Extra LPG Nozzles included in the pageage, the natural gas pressure regulator and the gas pipe are NOT included. 2It is recommended that gas stove be installed and tested by professionals. 12 inch Gas Cooktop with pot stand. Preset NG nozzles(extra 2 Propane nozzles). 1/2 NPT Connector and Elbow Connector with sealing rings. Mounting brackets and screws. Melt-proof and anti-scalding bakelite knob controls, with child protection lock, need to press and rotate at the same time to ignite, preventing children from accidentally touching. Every burner unit is installed a thermocouple flame-out failure system (FFD), will automatically cut off the gas supply when the flame goes out unexpectedly, to avoid gas leakage. HEAVY-DUTY CAST IRON POT STAND. One-piece heavy cast iron grate, easy to assemble and remove, will not deformed. The unique eight-claw structure is stronger and more stable than the four-claw and six-claw grate, can support the pot firmly, avoid letting the pan slip off. Installation of built-in gas cooktop. This gas cooktop is for bulit-in use only, please verify the gas cooktop is the right size for you. Product Dimensions: 11.6″ W x 20.4″ L x 3.9H. Cut out Dimensions: 10.7″ Wx 18.9″ L. For a correct installation, the following precautions must be followed. A Fixing fittings (brackets, screws) are provided to place the gas cooktop on work top, measure 0.79 to 1.58 inch in thickness. B In the event the gas cooktop is not installed on a built-in oven, a wooden panel must be inserted for insulation. This panel must be placed at least 0.79 inch distance from the bottom of cooktop. C When installing the gas cooktop on a built-in oven, the oven should be placed on two wooden strips; in the case of a joining cabinet surface, remember to leave a space of 1.78 x 22 inch at least from the back side.