1. A display device for supporting packaged products comprising; a pair of spaced apart substantially flat mounting brackets adapted to be mounted in a refrigeration zone, each bracket having an elongate generally rectangular shaped supporting member rigidly affixed thereto and projecting laterally therefrom, each supporting member having a pair of aligned elongate openings in opposed walls thereof, an elongate substantially straight horizontally oriented channel shaped mounting member including a web portion and a pair of flanges integral with said web portion and depending therefrom, one of said flanges having a plurality of longitudinally spaced apart notches in the lower edge thereof, the other flange having a plurality of longitudinally spaced apart keyhole shaped apertures in said one flange being aligned with a notch in the other of said flanges, said flange also having aligned openings in opposite end portions thereof; said supporting members being telescoped into end portions of said mounting member to dispose the openings in each supporting member into registering relation with the elongate openings in one of said brackets, securing means extending through the openings in the mounting member and said supporting members to interconnect said members together; a plurality of similar elongate cylindrical support members each having a diameter slightly larger than the smaller portion of a keyhole opening, each support member a pair of opposed recesses in the surface thereof whereby the cross-sectional size through the recess is slightly smaller than the smaller portion of a keyhole opening, each support member having an end portion thereof engaging in a pair of aligned openings in said mounting member, with the recess portion of each support member being seated in the smaller portion of a keyhole opening and coacting therewith to prevent accidental rotation and longitudinal movement of each support member, the outer end portion of each of said support members being bent upwardly.