50pcs 5ml Plastic Graduated Vial Storage Container Test Tubes with Screw Caps

Bought this to share fountain pen ink with my friend. It did not spill

I ordered these vials so that I could exchange samples of fountain pen inks with my family members and friends. Full-size bottles of quality ink can be very expensive, and it's a terrible waste if a particular shade turns out to be disappointing when seen on paper. These vials allow me to trade small (3 to 4 ml) samples of ink with my circle of fellow fountain pen users so that each of us can easily and inexpensively share one bottle of ink rather than each of us buying our own. It's proven to be a huge money-saver for every one involved. My best friend gave me a sample of a light blue ink that I had planned to buy; when I used the sample, I realized the shade was too light ... much too light. Conversely, another friend gave me a sample of a turquoise blue that has turned out to be one of my "signature" inks. What I like about these vials is that they're graduated, meaning that they narrow at the bottom. This allows me to be able to get the last drops of ink at the bottom of the vial easily. I also appreciate the measuring guide on the side of each vial, as well as the quality of construction. Finally, the price is absolutely right. I paid less than $10.00 for 50 tubes, less than 20 cents each. Highly recommended!

Seals good. Use them for muzzleloader powder charges. They hold about 110 of 3f real blackp. Would hold 2 crappie jigs or medication for a day trip or camping.

This was the 2nd time I ordered it.

These are EXACTLY what I needed and wanted! 5ml sample tubes, well labeled, with a rubber O ring seal inside the cap! Great for storing liquids etc. I received all 50 and they all had their caps and o rings. Zero complaints, will purchase again!