The shelving unit I purchased does what it says on the box.  However the instructions are vague which I had read were not useful.  The big problem with putting this unit together is how sharp the metal is which unfortunately resulted in a visit to Minor Injuries with a severe cut on my hand which required steristrips and glue to stop the bleeding.  I would recommend that it is stated on the packaging that gloves are to be worn so nobody else gets hurt.  Also this product does require 2 people to build.