Lillian Vernon Self Watering Ceramic Hedgehog Pot Peeker. Little cuties are more than decorative! Use these fun critters to maintain the soil moisture of potted plants indoors or outdoors. The critter portion is a highly glazed ceramic that rests on the rim of the pot; underneath is unglazed ceramic that will allow moisture to seep as needed into the soil. Just insert self-watering peekers and fill with water. No need to set timers or worry with electronic devices. Each style extends over pot rim approx. 1-1?2 inches and has easy-to-access water reservoir behind the head. 3" x 3.5" x 7" high.