Randomly sized rings that can be put in most plastic test tubes. 


  • Ants like less space. These rings turn your test tube into a mini formicarium. It also provides a much more stable humidity chamber inside the test tube. The queen will also feel safer because of the narrow entrance. A nice added bonus is that the ants will stay inside the little chambers making feeding the colony so much easier and less stressful.

  • You will get random inserts. This means random colors and random sizes. If your ringserts don't fit in your test tube there is nothing that can be done about it.