Great for making your own fruit fly cultures or for rearing tadpoles

I use them for fruit fly cultures, or with cloth lined lid for you mantis nymphs they work great.

use for my froglings, for fruit fly media, adn feeding my frogs. Great deal, packaged well

We use ours for Fruit Fly cultures. I am able to wash these after a culture is done and use it again. I was actually very surprised that the lids cleaned up so well after the flies had their way with it. These are the perfect size to house a FF culture. The only issue keeping this product for getting five stars is that, sometimes when you try to put on the lid, the cup can partially collapse. This does't seem to cause any damage and the cup will go back to its original shape but this can be a little annoying.

Great bulk buy! I'm using for my fruit fly cultures