Like most I used to keep my spices in a cupboard. When I needed a certain spice for something, I was never able to find the right jar among the tons of jars I had in there. These Magnetic spice jars are perfect. I can easily see what spice and quantity I have currently on hand. (This comes in handy when cooking or meal prepping to make sure I do not run out during that clutch moment when a recipe calls for a spice and my jar used to come out EMPTY)I ran the jars through my dishwasher (top rack) and hand washed the lids. I would recommend you have something that can be used to pull the magnets off of the jar lid, they are not encased in a solid magnet, but have 2 super strong small magnets under a cover. By doing so, this makes it super easy for you to wash the lid without holding moisture under the magnet cover, thereby wetting or tainting your spices.Each jar held nearly a full, normal sized jar of spices. Though they can't be held to blame if you have 2 or 3 of the same spice like i did. They come with cute little clear labels, I purchased two sets so using both sets of labels I was able to label both the end and a side.They stick well to my fridge, never moving unless I pluck them from their current location to use. In purchasing, filling and using these jars, I have freed up a ton of space in my otherwise over packed cupboard. I would highly recommend these jars to anyone looking for a creative cute way to save space.I first saw these jars on a YOUtube channel for tiny homes, and have been hooked on these jars ever since! Remember, think outside of the box, these can be used for other purposes as well.Cute, functional, well designed to nest together, easy to fill, and look great on my fridge!I love my purchase and I'm sure you will too!