Twdrer 50PCS 5ml Plastic Graduated Vial Tube with Screw Caps,Small Test Sample Bottles Tubes Container with Lid

I’m sure you can use these for many things, but I have used them for fountain pen inks when I share them with others who want to try a small quantity of an ink without buying a whole bottle. They are just the right size and cap tightly, and definitely seem to be quite durable.

Perfect for holding fountain pen ink when traveling or sharing with friends. Haven’t leaked and are plenty big for labels.

I use these to add inlay material to rings I make. These work great and I can store any extras.

Good quality vials. I use them for needles that I ship to customers.

I bought these to hold fountain pen ink samples. They are holding up great, no leakage. They are very slightly smaller in diameter than the mini dinky dips.

I bought these little containers to hold my fountain pen ink. The are perfect for the job. I have had no issues with the ink leaking in my bag

These containers are perfect for storing my very most precious rhododendron seeds in the refrigerator. The caps are great, too, as they are secure and protect the items inside. One problem with glass or plastic small containers with seeds, however, is that static will retard the seeds from easily being poured from the container unless it is counteracted with a radioactive wiper made for the purpose or a discharger.

I throw a few of these in my pocket for sample collection on the fly. Perfect size for my needs.