Abstract: A card construction includes an envelope portion of a card in the form of a sleeve or pocket with an opening at the top which receives and holds a slideable pullout. A tab is formed by a reverse fold at the lower end of the pullout. The rear face of the envelope includes an aperture or window which engages a tab extending from the lower end of the pullout. The location and dimension of the window corresponds to the tab so that the two engage at a point where it is appropriate to stop the pullout from coming any farther out of the envelope. Because of the outward spring force of the tab, a tapered end of the tab is thrust out of the window as it passes by the aperture, thus ensuring engagement between the pullout and the envelope.