The rectangular pizza stone in this 4-piece pizza stone set measures 15 inches by 12 inches. It is made of all-natural cordierite stone that meets FDA safety standards. It has no peculiar smell and excellent thermal shock resistance, and can withstand high temperatures of up to 1472°F (800°C). The numerous tiny pores on it can evenly absorb moisture, ensuring that the bottom of the baked pizza is crispy and delicious. The accompanying 12-inch by 17-inch solid oak pizza paddle is made of precious material, sturdy, durable, and not prone to cracking. Its unique resistance to permeability effectively prevents oil from seeping in. In addition, a steel pizza cutter and 10 pieces of kitchen parchment paper are also included. This set is versatile. It can not only be used to bake fresh or frozen pizzas but also to make flatbreads, sourdough bread, scones, and more. When cleaning, simply scrape off the remaining food with a spatula. After it cools down, scrub it with a brush under warm water. Never use soap or detergent. When using it for the first time, clean and dry it, and then preheat the stone in the oven at a temperature above 400°F for 30 minutes. Then you can start a delicious pizza journey. It can easily turn your oven or barbecue into a professional pizza oven, meeting all your needs for making homemade pizzas. It is an excellent gift choice.