The instructions were hidden. I had to figure it out myself, took some time. But when I did, it was very easy. But they are there!
It was missing some items, so I couldn’t make all of the cubes. I emailed Wayfair and they sent me a new set! And it, itself is wonderful! Especially for a person like me who has tons of shoes and I like to stay organized. The only reason I’m giving 4 stars is because it was missing some items. 
But I must say that they responded fast and I had another set in just a few days!