Mayer MMGH773 Glass Hob consists of brass burner and brass has a high melting point and is more resistant to warping and deforming as compared to other materials. This means your Mayer gas hob burner is longer lasting and will require less maintenance. It is equipped with a safety valve will automatically cut off gas supply in any event when flame extinguished due to wind factor or spilling of soup. The Trivets are made of cast iron that has stronger structural strength with high heat resistance and will not deform easily under great force. The tempered glass body is made with explosion-proof membrane technologies to prevent broken into glasses and to strengthen by distributing the force evenly. It also uses European ignition system; higher precision, safer and more stability with VDE certification.