Decorative Items -Creative Glass and Pigment Green Forecast Forecast Predictor Barometer Highlights Generic Brand Creative Glass and Pigment Forecast Forecast Predictor Barometer Description: Brand new and high quality. A very nice interior decoration and a weather forecast bottle to predict the next day's weather conditions. Principle: Predict weather conditions by detecting the air pressure inside the liquid in the bottle. Includes pack of green water soluble pigment. A great gift to send your friend, relatives and colleague etc. Material: High borosilicate glass Size (DxH): Approx. 9*15cm/3.54*5.91inch Color: Green pigment, mixed with pure water and bottle color is clear. Easy to use: Use color mixed with pure water. Use the wear injector with the plastic tube (both provided), suck the color water, put into the bottle, normally need three times. When it rains, the water in the thin glass tube will be lifted higher than the water in the globe. On the contrary, If sunny, the water will be fallen, the same position with the bottle water. Package includes: 1 x weather forecast bottle 1 x green water-soluble pigment Note: No liquid inside, you need to add liquid by yourself, you can DIY your favorite color. The loose color can be used multiple times, just add a little to mix with the water. However, if you want darker, as you wish. Be careful to avoid it to your hand, it's sticky, if you have it, wash your hand!