Glass Weather Forecaster Liquid Barometer Predictor Desktop Weather Glass 30ml Weather Forecaster: With the glass bird barometer, according to the state inside the bottle, you can predict sunny, cloudy, fog,, snow, etc Ancient Principle: This exquisite glass bird barometer uses an ancient principle that changes in pressure can predict changes in weather conditions. Practical: Different patterns are formulated according to temperature change. If the water in the glass is clear, which represents that the weather is sunny. If the water in the glass is cloudy, then the weather is cloudy. Attractive Appearance: The weather predictor is made of high borosilicate glass for excellent quality, bird design is cool and unique. Included： 1PC Weather Glass Glass Weather Forecaster Liquid Barometer Predictor Desktop Weather Glass 30ml Professional design, comfortable, durable You can use it longer,High cost performance This is a good gift for your friends, family and classmates.It's a good choice 【GOOD SERVICE】We make sure each item is of high quality.No reason to return or exchange goods within 30 days.If any questions, please be free to let us know, you will get our reply within 359 hours.