I bought these to make an indoor enclosure for my pet rabbits. After seeing many pictures online of people using the cages to create their own shape and size.  The quality of the wire is very good and strong - the pieces that adjoin the mesh are also very strong but would not recommend undoing too many times once clipped as the plastic becomes weak when trying to prise open.  All in all a very useful versatile storage item - if you use your imagination. I would recommend this product.