I love these things! - I use these to pre-sort taxonomic groups of ethanol-preserved aquatic insect samples. They are FANTASTIC. The smooth lip and wide mouth make it easy to get specimens in and out without damage, and the caps fit just right. I keep samples in these for at least several weeks and have never had problems with evaporation or leakage.
Snap Cap Vials
The included tight-fitting polyethylene cap easily snaps off, yet provides a leakproof, evaporation-proof seal. Soda lime glass vials. Packages of 12.
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