The invention relates to a studded air-filled vehicle tire having a rolling direction and comprising a rubber tread with pattern blocks and grooves that-separate the blocks. The system includes a plurality of input sources each containing different agricultural inputs. To test the reacted sample it is placed in a well in a detection tablet that has been impregnated with a detecting chemical and produce a visible indication of the presence of absence of a particular drug. In other embodiments, the blade comprises an aperture, a neutral-density filter, a monochromatic filter, and the like. Thus, the filament voltage is controlled to be a predetermined voltage of a rated value or less. The gerotor guide may be part of a cabinet or built into a kitchen countertop.