A self supporting apparatus (10) for trays (40) includes a groove plate (20), and a plurality of pivotally mounted trays (40) wherein each tray (40) is pivotally moveable relative to the groove plate (20) between a first position (46) and a second position (48). The groove plate (20) includes a plurality of flexible tabs (70) facing the plurality of trays (40). An edge (50) of each tray (40) includes a rounded surface (52) and a rib (56), wherein each one of the ribs (56) engages one of the flexible tabs (70) to hold the trays (40) in one of the first or second positions (46, 48). The rib (56) flexes the tab (70) as each tray (40) is pivoted between the first and second positions. The tab (70) and rib (56) maintain the trays (40) in the selected positions until the trays (40) are moved.