Dura Cotta collection hanging basket. Helps keep your plants from drying out and will reduce the time you spend watering. You will love how the sturdy polypropylene construction looks like classic clay, but won't chip, crack, or discolor. Inside the hanging basket, there is a hidden reservoir that holds approximately 1 In. to 2-1/2 In. (depending on planter size) of water. The self-watering disk keeps dirt and roots above the hidden reservoir while constantly providing healthy greenhouse-like moisture through the evaporation process. Includes matching macrame cords for hanging. The self-watering disk works by holding the potting mix above the water line with a sturdy screen. The water chamber is connected by small porous channels filled with soil, which then acts as a wick. As water is used by the plant or evaporates off the surface of the soil, capillary action draws more water up from below. The soil has just the right amount of water all the time, but also maintains air pockets, which the plant roots also need to stay healthy.