SCHEURICH USA 51681 Bordy Water Supplier, Medium, Blue Stores and supplies water for your potted plants for up to four days Transparent plastic body makes it easy to determine when it needs to be refilled, so there's no overwatering. It's easy to use, just insert Bordy into soil of potted plant Fill with water through Bordy's beak and water is gradually released through clay pointed end The amount of water supplied is determined by what your plant acutally needs