This salt and pepper shaker is made of white stoneware, fired to cone 10 reduction. Wheel thrown and added a slab of clay. I glazed this mug with the rutile blue glaze inside and overlapping outside with the turquoise glaze with hint of red/pink dots. Reduction fired to cone 10 in the gas kiln. I mix own lead and barium-free glaze. It is food safe, dishwasher and microwave safe. 2.5"wx4.25"H 2.5"wx4.5"H