This audio rack looks good, but needs some design/ construction improvement.  It basically consist of sturdy, heavy glass plates for shelves with 9 in steel pipes between them.  Each glass shelve is separated by a cheap, poorly made plastic bushing that is critical to the design.  Also the bottom is open and will cut through carpet or scar up wood without modification. I put sliders under each foot to solve this problem, but they will not last forever as the weight of the shelves and equipment will cut through them.  Assembly instructions are also poor.  Marking some of the pieces ( i.e. top  shelve, bottom shelve ) would help a lot.