Quality of the plate, it is super because you can not go against but say careful when buying! Are mapped are small gel buffer that separate the glass from the ceramic hob, delivered huge parts that increase the distance from the ceramic hob to 3cm are Gray ugly parts that are a diameter of 3 cm and approximately 3 cm high and again the 4 different parts of the distance still to 4- 6cm can increase. So I ask myself what is this?!? What the ?? I had bought such gel buffer just for glass plates by accident, that's why I have not returned.