A micro-weight training apparatus can include one or more disc-shaped micro-weights. The micro-weight can include an annular body defining a substantially central aperture extending entirely through the annular body, wherein the annular body comprises first and second surfaces, with each surface terminating in a radiused edge. The micro-weight further includes a magnet disposed in the aperture. The micro-weight can have a mass in of about ¼ ounce to about 2 ounces.