200PCS 5ml Plastic Small Vials with Screw Caps Sample Tubes Cryotubes,PP Material, Free from DNase, RNase, Human DNA

Exactly what I needed for samples of fountain pen ink!

Perfect for any liquid or solid size appropriate item! These are great for small beads or rhinestones at a fraction of the cost of expensive craft storage options. Great little item for not just in the lab! You are only limited by the size of the item you need to store.

These are expensive, even in the larger packages, but they are high quality. I've gone through about 1000 vials at this point and only had a single leak, which is totally expected and acceptable. They use thick, durable plastic and the o-ring seals are good, with very rare defects. They hold 5ml as advertised.

5ml size is big enough for storing and organizing a variety of things around the house. They're leak proof with an O-ring seal in the lid. There's a rough patch on the side for writing on with a marker. Base is stable and they stand up solidly.

Buen precio y muy funcionales. Herméticos.