Modified polyolefins with isotactic structural elements and processes for preparation thereof are provided. The device includes a circuit adapted to receive a signal from the POS system and open the cash drawer, or else generate a signal to the cash drawer that is recognized by the cash drawer as the signal to open. The substrate may have a high voltage area and a low voltage area, and the oxide layer may be partially etched in the low voltage area so as to have a reduced thickness. The back gage assembly is movable in both the horizontal and vertical directions.