Z Adjustable Rolling Rack - Adjustable - Black Base. The industry standard for sturdy clothing racks is now available with built-in 3 position height adjustment. At its maximum height, this adjustable Z rack offers 78"H of total clear vertical hanging space. Z rolling racks are ideal for backroom storage or display. Z racks nest for maximizing efficiency in backroom storage. This adjustable Z rolling rack has 4" non-marking casters with non-marking grey bumpers (2 locking and 2 non-locking casters). The Z rack has a black base with chrome tubing. The horizontal top bar allows for 60 1/2"L of hang space. The upright adjusts the horizontal top bar vertically from 70 1/4"H without the adjustable height adapter to 84 1/4"H (ground to top of hangrail). With the adjustable height adapter installed upright adjusts the horizontal top bar vertically at 3 positions every 5" from 74 1/4"H to 84 1/4"H (ground to top of rack), or 68" to 78" of clear vertical hanging space (top of black "Z" base bar to top of hangrail). In Stock.