Our Blind Corner Base Lazy Susan features textured polymer tray surfaces in all size trays. The -570 pack series has been added as standard which incorporates both standard and 90 degree hinge euro brackets, and also offer pull-out slides as a separate add-on value item. Chrome plated shaft and mounting bracket help to distribute the weight from the cabinet wall to the floor of the cabinet. Contains: 2-shelf supports, 2 positioner bases, 1 standard bracket, 1 Euro bracket, 17" ( 432mm) shaft assembly, 2 pair of slides, also template and installation instructions. Minimum opening: 19-1/4".