Abstract: A two-tiered display rack merchandiser for gravity feeding two columns of products one after another to the front of the rack as the lead product in either column is successively removed by a customer, each column of which includes a roller-mounted tray which, when loaded with product, is operative to push products located in front of the tray forwardly over a slip surface over which the products would not slide in the absence of the roller-mounted tray pusher at the rear of the column. The rollers of each tray are entrapped within tracks which extend parallel to opposite sides of the slip surfaces such that the trays cannot easily be removed from the rack.

Abstract: An improved shelf structure for use in a display rack having interconnected corner posts, comprising opposed, spaced shelf support arms connected by a plurality of telescoping cross members adapted to telescope between an extended and retracted position for varying the planar surface area of the shelf structure. An article support, carried by the cross members, includes top and bottom article engaging surfaces each having a different coefficient of friction and being adapted to contact articles placed on the shelf structure. Latch elements, releasably mounted to the shelf support arms, are adapted to mount the shelf structure to virtually all corner post designs of current display racks and to dispose the shelf structure in the desired angular attitude from front to rear.