This is also known as Water Level Apparatus. Consists of four different shapes glass tubes and diameters connected by a common tube. One straight thick tube, one with two bulbs, one squigly shape and one thin straight tube. Complete apparatus mounted on a strong plastic base. When water or any liquid is poured in the tubes, it will be observed that the liquid level is the same in all the tubes.
Length of Complete Glass Part: 5.5inch(135mm)
Capillary Tubes Height: 5inch(125mm)
Base Dia.: 4.25inch(115mm)
Total Height Mounted: 7inch(170mm)
Note: Products being sold are not toys. They are for laboratory / educational use only. They are not for use by children 12 & under.