The Isabella 24 Piece Dinnerware Set is made of stoneware and is 100% Turkish-made. Stoneware is a clay-based material used in the production of plates and dishes by being fired and fired at temperatures of 1100-1300 degrees. It is much more durable than ceramic and does not absorb water compared to ceramics. It can be safely used in the microwave, oven, and dishwasher for many years due to being fired at a higher temperature.