An attractive collector’s item that accurately forecasts changes in the weather. The hand-blown glass holds the food-colored water. When the water level in the narrow spout is higher than in the main body, that means lower air pressure and a possible storm. If the water level in the spout is lower, the air pressure is rising, indicating the passing of a storm. Choose your preferable food coloring to adapt to your décor. 13" mahogany wooden placket in an elegant shape features a high-gloss finish to elevate its beauty. No batteries are required.