A magnetic disk includes a substrate on which a nonmagnetic metal layer, a magnetic layer, a carbon-based protection layer, an alcohol-based coupling layer, and a lubrication layer successively formed thereon. When a predetermined electric potential is applied to the gate electrode, the lever of the corresponding switch is deformed by electrostatic force between the gate electrode and the lever and comes into contact with the terminal, and thus the terminals are connected with the lever. The magnetic pole faces of each upper pole plate, each lower pole plate, or each silicon steel sheet may be of the same or different length. The control unit electrical circuitry comprises a control unit processor. The ARIV can be configured to present an interactive 3D augmented reality visualization of the product item utilizing the augmented reality item data provided by the ARILS. The lid is dimensioned to substantially fit over the top of the box, in which the lid is attached to the hinge, whereby the lid is pivotally attached to the box.