Ferrite cores are small magnetic structures made of a ferromagnetic material such as iron and other materials. They are used to concentrate and guide the flow of magnetic flux in electrical circuits and components such as inductors, transformers, tunable filters, and other devices that use magnetic fields. Ferrite cores accessories are components used to enhance the performance and/or ease of use of ferrite cores. Examples of accessories include mounting kits, core holders, and core bobbins. These types of accessories can improve the efficiency of the overall system by reducing the amount of current induced into adjacent wires, keeping fragile parts far enough apart to minimize the effects of inductive coupling, and allowing for easier installation.