Comparable to the water world apart from that it looks like a stone. Watering lasts for as many as three-four times. The underside from the stone has a cork plug which acts as a drip dispenser. Disclosure of Material Link: A few of the back links while in the article https://how-to-become-a-travel-ag62616.blogsmine.com/30152851/what-does-plant-feeder-water-mean