This is a 4-way arcade joystick of crystal ball, metal shell and 4 momentary switches. The 4 momentary switches convert your move into a set of 4-way signals so that would send direction commands to your project. Also, it is industrial-standard and heavy-duty designed and will be cool to control your robots or any other machines. Features Original arcade style Florid globular knob 4-way action Spring return-to-center Specification Dimension : 78*95*39 (pedestal); 35*35*70 (knob)