Disclosed is a polarizing, transparent optical product, the structure of which comprises a basic transparent substrate of an inorganic or organic material and, on at least one part of the external surface of said basic substrate, a polarizing coating. The method comprises the steps of: opening a section of a zipper tape to form a gap between the profiled closure members; inserting a first portion of a body into the gap with a second portion of the body projecting above the tops of the profiled closure members; and joining the first portion of the body to adjoining sections of the profiled closure members. Further, the PC registers the background pattern, the addition data, and the position data in an information server in association with each other. A tracking report of the transaction is then generated using the calculated transaction performance information. Surprisingly it has now been found that the drug loading capacity can be dramatically increased by filling the lumen of the coil with micro-particles such as microspheres that contain the drug of choice. The target device may include processing circuitry to generate a random number, to determine if the random number is in the first set, to generate a random value, and to randomly select a time slot.