Commodity information：

Material: Plastic/Plastic
Can DIY: Yes
Packing method: color box
Ability development: intellectual development
Science and Education Toy Type: Physics
Applicable age: Juvenile (7-14 years old)

Hydraulic power principle:
The hydraulic principle (HYDRAULIC SYSTEM) refers to the use of
In a closed container, using the incompressibility and force transmission of the liquid
Conductivity, when the inner wall of the container is under pressure, any
-The pressure on the premises is equal and will be transmitted equally
Pressure to all parts. Is to use this principle to be water
--When one end is under pressure, it will transmit the pressure to the other side.
Drive each joint of the arm to produce action.