A selectable, multi-purpose card comprising a plurality of features stored in memory means operatively mounted on the card and selection means for allowing a user to select a feature in a few simple steps, preferably in a single step. The compounds can be used to inhibit mammalian cell proliferation in situ as a therapeutic approach towards the treatment or prevention of diseases characterized by abnormal cell proliferation, such as cancer. The housing also includes a central bore to allow for the passage of a crankshaft and an annular recess which supports the outboard crankshaft bearing. The flexible label comprises a first layer having advertising thereon and a second layer coextensive with the first layer providing a uniform thickness and includes a removable premium which is separated from the label for play or collection by the user. The puck itself does not execute any of the device code; rather, a host retrieves the sensor information from the puck when the puck is plugged in.