Nicunom 30 Pack Clear Glass Sample Vials with Screw Cap, 20 ml Liquid Sampling Glass Bottles Screwcap Sample Vials

Perfect sizes, caps hold up and don't loosen easiliy

The product came well packaged and nothing was damaged or broken. The opening to the bottles are about the size of a nickel. Making it big enough to place small items into the jar with ease. The glass appears to be thick enough to freeze without breaking. I will try that next. Did not leak when I did the water test. I am using the bottles for storing seeds. Also for adding spices for traveling. I am trying to avoid using plastic.

Weights are within like 1% of each other which makes for batch control very easy. Packaged very nicely so low chance of breakage

I love these little bottles. After multiple reuses, they still don't leak.

Used for seed beads .