Feature:1. This weather forecast bottle supports temperature change detection function, different weather will produce different crystal changes.2. Perfect for birthday gift, Valentine's Day gift, anniversary gift, Christmas gift and more. It is a good choice for your family, lover and friends.3. The solution in this weather forecast bottle container is composed of several chemicals, which can be used to predict weather and very practical.4. Unique shape and beautiful appearance, this weather forecast bottle is also a very nice home decoration, suitable for living room, bedroom and so on.5. When it is sunny, the filling is at the bottom, and the liquid is clear at the upper part. When sunny to cloudy, the contents of the bottle floats; when it is cloudy, the filling in the bottle will float and become more turbid.Specification:Condition: 100% Brand NewItem Type: Weather GlassMaterial: High Borosilicate GlassColor: Pink, Purple, White (optional)Package Size: Approx. 21 x 12 x 12 cm / 8.3 x 4.7 x 4.7 inWeight: Approx. 571g / 20.1oz.Package List:1 x Instruction Manual1 x Base1 x Weather Bottle