Air plants (tillandsia) are beautiful exotic plants that pair well with stunning sea urchin's and will make a great conversation piece. They make a great gift for that hard to shop for person in your life. Requiring no soil they only take water and nutrients through their leaves. They like be soaked in water for a couple minutes once a week and given bright indirect sunlight or artificial light. Each air plant is unique and depending on the time of year they can change from curly leaves to straight. The one you will receive will be about 3" and the urchin will be about 2". The air plant is removable from the sea urchin and not glued in.