Hidraulic arm. It is supplied in kit format, for assembly.
It works with water, as an energy source.
At the base of the arm the controls are incorporated to be able to turn, open, twist and robotically manage this hydraulic arm.
The use of distilled water is recommended, in order not to damage the equipment and lengthen the life of the arm.
Detailed manual with step by step assembly in Spanish, English, French and Catalan.