An IVT assembly comprises an outer casing and a plurality of hydraulically operated roller control pistons. Signals of a plurality of main colors in the digital image are extracted and the extracted signals are used to generate a 3\xd73 color matrix. 6 wherein P is an immunogenic carrier material and X is a linking moiety. Since a plurality of comparison data strings corresponding to a plurality of frequency differences are compared with expected data strings by a plurality of discriminating units, data strings with frequency differences can be simultaneously detected, which results in shortening the time required for detection. The water may contain surface modifiers. To particular advantage, the claw clip is provided with decorative openings in its body portion, and a decorative article, such as a flexible chain, is secured through the decorative opening of the clip body and dangles freely and flexibly from the clip.