Eowpower 50pcs 5ml Plastic Sample Bottle Vial Storage Container Test Tubes for Laboratory Lab

I got these to send ink samples to a friend who has taken up fountain pens as a hobby. I was sending them to australia (from the US) and needed something that was water proof, and would hold up to what I can imagine will be some abuses during the journey (tossing onto and off of trucks and airplanes during the journey). The package got returned to me (TX) from (TN) due to them wanting more info on what was inside. I provided that info, they returned it to me anyway. No leaks. I reshipped the package having provided the additional info re: contents. The package was returned to me (TX) from (TN) because I put the value at 0.00 since it was a gift. I, again, re-valued the gift at 0.01 and shipped again, no leaks. It's SAYING it will arrive monday. I have zero faith that it actually will, but the important part... No visible leaks and it's been to tennessee from texas TWICE already... Let's hear it for our ever vigilant shipping partners, and whomever came up with the seal caps on these vials.... =)

These seem to be decent quality, but they are not the dimensions listed in the details. Overall height is 60mm, not 41mm like it says. That makes them too tall for my intended use.

Seller send the cheap quality chineese brand product instead of DIY Craft brand.

These are very affordable. I made samples for a friend and none leaked in shipment. Using them at home to store small amounts of bottled inks, so I don't dip dirty pens in bottles and introduce microbes. Hopefully this will keep my ink bottles mold-free. Also useful for storing small amounts of mixed ink. These are surprisingly useful, I've nearly used up my first 100!

I've used glass bottles but the lids never really held the liquid, once I got these with the little rubber ring, the liquid stays in and they don't leak. Perfect for my project!