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 yellow clay, and come in 3 different sizes. The smallest pot is 4.75" tall and 5.5" wide, and can hold a 4" plastic pot. The medium sized pot is 5.5" tall, and 6.25" wide and can hold a 5" plastic pot. The tallest sized pot is 7.25" tall, and 7.75" wide and can hold a 6.5" plastic pot.