I order this item almost a year ago. I always thought it seemed smaller than what I thought it was going to be. Today I decided to look for a new taller one to better for my needs and looked at this previous order.... and realized after almost a year that they sent me the wrong item! The storage rack I received is only 3 tier! 
Otherwise, it’s been a good rack, sturdy and easy to put together. Just so disappointed it too me so long to spot the difference that I now I have spend more money to get something I actually ordered so long ago (