such that the opening of the composite receiving channel encircles and is oriented away from the cylindrical axis of the cylindrical portion 14 in accordance with the fourth embodiment of the present invention the biased restricting member 26 is preferably circular or at least biased toward an arcuate or circular configuration the relaxed diameter of the arc or circle defined by the biased restricting member 26 is preferably smaller than the diameter of the composite receiving channel 24 so that the biased restricting member becomes biasedly engaged to the arcuate wall that defines the base of the composite receiving channel for example when the biased restricting member 26 is a segment of wire the wire is bent so that it is biased to a configuration having a diameter smaller than the diameter of the composite receiving channel 24 and then the wire is placed in the composite receiving channel so that the wire becomes latchedly biased into the composite receiving channel it is within the scope of each of the embodiments of the present invention for the composite receiving channel 24 to be outwardly oriented as in fig5 fig6 illustrates portions of a cylinder assembly 10 and a portion of a sinker 12 which is shown by dashed lines in accordance with a fifth embodiment of the present invention the cylinder assembly 10 in accordance with a first version of the fifth embodiment of the present invention is identical to the cylinder assembly of the third embodiment of the present invention and the cylinder assembly in accordance with a second version of the fifth embodiment of the present invention is identical to the cylinder assembly of the fourth embodiment of the present invention except.