These glazed ironstone flower pots look ceramic, but are made using molded metal from re-claimed car door metal, a sturdy "spun metal, light in weight, and very durable" Drainage hole with removable plug, a crucial element in keeping plants healthy for a long time, you choose if you need to drain or not Stamped, molded and seamless planter with three powder coats of high-quality paint, each individual layer is baked ensuring bold color Non-slip feet, made from foam on bottom of flower pot, won't scratch or scoff up your floors Long lasting bold colors, great flower pots that are rust resistant for an outdoor screen porch, deck, by your front door and indoor use