Fabric Vented 4.5 inch Deli Cup Lids

4.5 inch poly-fabric vented lids are perfect for fruit fly cultures, and also great for smaller crickets that might be able to squeeze through the aluminum mesh screen lids.  The fine breathable fabric on these lids will keep in even the smallest of insects.  

These are made for the semi-clear (aka Fabri-Kal) 4.5 inch diameter cups and fit them perfectly.  They can be used on the clear (aka Solo) cups, but they do NOT fit the Solo cups perfectly.

For larger insects we recommend the aluminum screen insect lids.