Abstract: An exerciser that includes a stretchable tension member connected to an adjuster mechanism which permits the tension member's length to be varied as desired by the user. The adjuster mechanism, in preferred form, includes a housing that defines a cavity open through a port to atmosphere. A free end of the tension member is looped around a latch pin within the cavity, both ends of the loop extending through the housing's port. The latch pin, which is accessible to a user from exteriorly of the housing, is movable within the cavity away from the port when it is desired to adjust the tension member's length, and is movable within the cavity toward the port when it is desired to lock the tension member at the desired length. The cavity includes wedge shaped interior walls that flare away from the port, and that cooperate with the pin and the tension member's looped end, to establish the locking position of that looped end.

Abstract: An alarm system that signals when one or more credit cards are absent from a card stack in the case if the system is enabled. In preferred form, a card stack thickness sensor responds to the stack thickness to determine whether all cards are present in the stack. A first signal device (e.g., a buzzer) in a circuit that includes a single sensor switch operated by the card stack thickness sensor informs the case's owner when not all cards are present if the circuit is enables. A second signal device (e.g., one or more of the cards, or a separate flag) that is projectable from and retractable into the case's interior is operated by a circuit enabling switch, this switch being manually controlled for enabling the circuit when the case is to be stored (the second signal device being disabled, i.e.