YOU DEFINITELY SHOULD ADVISED HOW WEAK THE MATERIAL USED ON THIS PARTICULAR UNIT IS!
PRESSED CARDBOARD OR WHATEVER IT'S, IS SO WEEK THAT IF YOU MAKE THE MISTAKE TO TO TIGHTEN A LITTLE BIT TO MUCH,  MATERIAL WILL STRIPPED IN AN HEART BEAT! 
HAD A REALLY HARD STRESSFUL TIME!
SAME HOLES OF LOCATION, SMALL DINGS, GLASS DOORS FALLING APART. 
THIS PARTICULAR ITEM, I THING IT'S OVER PRICED FOR THE CONTENT, I WOULDN'T RECOMMEND!