These are hand thrown stoneware clay pots, suitable for growing orchids. You can either grow an orchid directly in these pots, or put a smaller plastic pot inside of them. These pots are made out of dark gray clay, and come in 3 different sizes. The smallest pot is 8" tall and 6" wide(diameter of outer rim), and can hold a 4" plastic pot. The medium sized pot is 9.25" tall, and 6.5" wide and can hold a 4.5" plastic pot. The tallest sized pot is 10.25" tall, and 7.75" wide and can hold a 5.5" plastic pot.