They just came together. The rods are all hollow metal, the connectors are plastic, the shelves are sheets of plastic folded at the ends and heat welded to form loops for the rods to pass through. I had a pole with a bend in the middle and two replacement plastic bottoms (short on the sides) were included in the kit. There are no replacement plastic joints. I haven't broken any, but some of them are showing stress distortion (black plastic turning white) due to the strong impact of the bars. The clothes rail is made from the same metal as the other rails and there are two plastic clips to hang it on the top shelf. It took me 1 hour and 20 minutes to assemble the film. It looks like it would be great for temporary storage, but be aware that it's not strong enough to support much weight.
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