Graces Dawn Glass Weather Forecast Glass Bottle Cool Stylish Modern Decoration Tips: products shipped from China. During the peak period of transportation, it is not guaranteed to arrive before Christmas. Please confirm the delivery time before ordering to meet your needs, thank you understand. The cool new and modern Storm Glass is a natural way to forecast the weather. The sealed glass container holds a mixture of distilled water, ethanol, and camphor that changes in appearance based on forthcoming weather conditions.&#xFF0C;The appearance of the liquid transforming from clear to cloudy to crystal flakes predict whether the weather will be clear, cloudy, or filled with thunderstorms. While it can't ever be as accurate or reliable as a barometer or actual meteorological forecast, the patterns made are gorgeous and makes for a stunning decoration on any desk and dining table. Note : the Storm Glass may need one or two weeks for the crystal to stabilize and adapt to the environment. Do not place in direct sunlight or heating and air conditioning to avoid deterioration of the crystal. Specifications : &#x2022; Size : approx. 80 x 110mm; &#x2022; Weight : approx. 450 grams (including packaging); &#x2022; Materials: borosilicate glass, compound liquid, water, ethanol, natural camphor; &#x2022; Elegant gift box packaging; &#x2022; Not intended for use as accurate weather forecasting device.