This is a storm glass object that was used by navigators as a weather forecasting device. Color: Clear The crystals inside the storm glass reflect changes in the weather and vary depending on changes in atmospheric pressure and temperature. On sunny days, the liquid is clear. Depending on the weather, crystals will appear. One of the attractions is being able to feel the power of nature with your eyes. The glass crystals change moment by moment, creating a fantastic and captivating sight. Size Height: Approximately 18.5 cm Width: Approximately 10 cm (at the widest part) Base Wooden Length and width: 11.5 cm each Height: Approximately 3 cm When displayed under a light, the crystals inside will appear fantastically, making it very beautiful!