These Clear 90mm Pop Top Tubes – 1000 Count, USA Made, Child-Resistant are a great solution for small-item storage. The pop-top design takes a bit of getting used to—you need to squeeze just below the lid to release the top. When new, the lids are quite snug, which is actually a plus for maintaining a good seal.They’re perfect for storing beads, small parts, or even as pill containers when traveling. I personally use them to hold a few days’ worth of medication, which saves space and hassle on short trips.The listing claims they’re watertight, and I found this to be partially true. I tested one by filling it with water and leaving it upside down for over a day—no leaks. However, when I used a few to carry liquid during a trip (stored inside a Ziploc bag just to be safe), I did notice some minor moisture escape. Not a major leak, but enough that I was glad for the extra layer of protection.The dimensions are roughly 90mm tall and 17mm in diameter, which puts the internal volume closer to 20.5ml, not the 95ml listed in the description. This is worth noting if you need precise capacity for your use case.Overall, these are handy and versatile tubes with plenty of use cases—just be realistic about their size and limitations. For dry items or casual travel use, they work great and the bulk count means you’ll have plenty on hand.