I received Sleek Stor Collapsible Measuring Cups as a gift a few years ago. My mother bought them for me because she knows I like kitchen items that are a little different than usual. These are very handy because they take up very little space when you flatten them down. I have a small apartment with VERY limited kitchen space, so the fact that these take up basically no space in my kitchen drawers is awesome! These are simple to use. They can be flattened down when storing and you simply pop them up when you want to use them. The bottom of the cups have big numbers so if you have vision problems it's great because the numbers are super easy to see. The fact that they are mostly rubber makes them easy to clean and nothing sticks to them. I really like these measuring cups. The band that you use to hold them together is kind of a pain though. I ended up tossing it away and I just wrap a rubber band around them because the one it came with was too much of a hassle. Overall, I highly recommend the Sleek Stor Collapsible Measuring Cups. They are great if you have limited space! They are simple to clean.