Similar to the water world apart from that it seems like a stone. Watering lasts for up to 3-4 times. The underside with the stone features a cork plug which acts as being a drip dispenser. As you are able to see Boo Boo (the gadget we've been calibrating) is https://martinqppot.acidblog.net/60870613/the-basic-principles-of-plant-feeder-water