Water Clocks

Weight: 0.120kg Packaging: color box + bubble bag Kind shooting: Self Full Figure Product Size: 9.8 * 8.5cm Product Material: ABS  working principle Water clock completely without batteries, as long as the bottle is filled with water in the back of the clock, it can clearly display the time and date, as long as it is a few weeks do not have to add another water. Water sources of electricity generation trigger chemical reactions inside. The periodic table of chemical reactions mainly before 20 metal elements, including heavy metals, environmentally friendly (mainly because we live in a common magnesium aluminum).  Instructions This product was added to the water to work properly, such as product display dim or disappears, this time need to add water or other liquids (except corrosive liquids), until the liquid is too full of positive and negative vessel to work properly.