Review on Convenient and Versatile: Cornucopia 32oz Clear Plastic Jars with Black Ribbed Lids (6 pack) - BPA Free PET Quart Size Canisters for Kitchen & Household Storage by Renee Patterson

Not too bad, around £3.15 per container. Container and lid are made of plastic. It's decent plastic, not too flexible. I would feel good storing them and not worrying about them warping or bending if those were normal storage conditions. I was also glad they didn't have a strong smell or smell of plastic so I have to give that a plus. However, for what I use them for, they are perfect. I was looking for a way to store and display mechanical switches for the keyboards I collect. They hold around 200-250 switches per container which is perfect for me. Overall I am very happy with how these cases make my switches look like candy in a jar and I will be purchasing another set of these cases in the near future when my other batches of switches arrive. Again, I haven't had to store these containers in harsh environments, but I'm sure they will hold up well.