Amazon Basics4 Cube Wire Storage Shelves, Black, 37 cm D x 77 cm W x 77 cm H

These are great. Used them to build a guinea pig cage. She loves it.

Fab I used them to make my guineaa pig cage and they worked perfectly. I just used tie wraps to make more secure

Goes together easily and is quite sturdy. However whoever worked out the product dimensions didn't allow for the gaps between each side so total dimensions in a 4 cube square arrangement are in fact 14.8 x 29.6 x 29.6 inches. Probs not an issue for most but they won't fit in the space I need them for so thought I'd mention it.

Paired with some correx from a DIY store these make a great sized guinea pig cage which provides much more space than any of the on the market cages and is much better for their wellbeing.You can easily create any shape or size and add additional levels if required.These cubes have the correct number of holes (9x9) to ensure the holes are small enough safety wise (but please double up at staggard invervals for young or very small piggies).

This review applies for both, the closet and the wire boxes, as they are very similar, although the assembly method and shape are different.I bought this closet along with a 6-cube set of wire storage (both Amazon basics products) for the master room. We moved in about 2 months ago to a part-furnished flat. So far, my wife and I have been storing everything in suitcases. We wanted to buy simple storage options, not bulky wardrobes or so. Thus, we found these.I totally recommend these for the following reasons:1. Very easy to assemble. As a matter of fact, I did not assemble any. My wife did! All by herself! Instructions clear enough to understand and follow. No nuts/bolts required whatsoever.2. Rigid and spacious! We do not have many stuff (by now), and there is enough room for both our clothes and miscellaneous, without even thinking whether it will collapse or not.3. Optimal choice if living in a flat where space might be a restriction, or if you are planning on moving all your stuff in the near future. The item can be easily disassembled, facilitating transportation.Pro tip: one can easily mount/hang item on the sides or inside each box (cables, bags, etc.)Hope this helps! Will update my review in the future if necessary.