Excellent tool for the budding entomologist. The wide mouth of the jar makes it easy to get your bug in and out, and it gives a good, tight seal. We dropped the first one and broke it so we're on our second round. It works great!
Good sized jar for Insect Killing
For a killing jar, I wanted a lid with good fit which was visually different than any other jar I have. Clean fitting, wide enough and easy to open and close quickly, this jar with the plaster cartridge makes using ethyl acetate much safer and easier to use. Because the jar is opened and closed quickly, my concern about safely and correctly using ethyl acetate are less with this jar/plaster combo. Not only knowing that my insects are not in contact with the liquid, as well as the smooth and tightly fitting lid, keep fumes safely contained, killing insects as humanely as possible, while not being unsafe to open and close inside, in a well ventilated area.
This glass jar seals up much better than plastic ones I have used.