The Dream Baby Dehumidifying Dry Egg helps remove excess moisture and dampness from the air and reduces mold, mildew and other musty odors. It is filled with silica gel dehumidifying crystals that work to absorb excess moisture from the air. It is great for nurseries, bathrooms, laundry rooms and closets. No Electricity! No Refills! The Dehumidifying Dry Egg holder has moisture indicators situated on both sides. The indicators will change from blue when it is dry to pink when the egg is full of moisture. When it's full, just use your microwave (per the Egg instructions) and the Egg will be regenerated for another use. Use it over and over again!  Ships in 1 business day.