I threw this bowl on the pottery wheel using Stoneware clay. The lid was thrown upside down, and I made the lip to nest inside the lip of the bowl. After being fired once to 1800 degrees F, it was dipped in a wood ash glaze called a Nuka glaze and then fired to about 2300 degrees F. in a natural gas kiln. I brushed iron and cobalt on the rim of the pot before the firing, which drips down to create rust colors. Another pot also dripped a glob of copper red glaze into the put during the firing. It is 100% functional, dishwasher safe and microwaveable.Height including lid 5.5", width 6.5".