A molded plastic display device adapted to be removably secured to a generally horizontally extending shelf perpendicularly to the front edge thereof, with a central upstanding label holder, both surfaces of which can be provided with merchandising indicia. A transparent label cover enables the label holder to carry adhesive or non-adhesive labels or signs. A pair spaced hooks are provided below each label-receiving surface to support, in depending fashion, strip merchandisers carrying a multiplicity of products. Depending upon the width of the products being carried by the strip merchandisers, they may be selectively hung from whichever hook is closest to the shelf to minimize projection of the products into the aisle. The display device includes a simple foot and post mounting arrangement that provides secure cantilevered support even for a pair of fully loaded strip merchandisers, while permitting installation in only a single fashion so as to minimize the likelihood that inexperienced users will improperly install the display device on the shelf.