It is rolling metal or plastic pins, which is used to divide the computer frame from the chipset are stiffer springs or pauses. It unplugs the desks, and unscrew the fasteners, which keep the board on to the cases to remove the piece.
It is a fixed size hooked divider used only to elevate each element above others and in such an ensemble.
It is generally round or hex, typically made of copper, brass or nylon.
