We bought THESE once we were feeding "Neighborhood" cats plus they ended up really handy. I'm sure They are plastic, but I was far more concerned with retaining the ants out on the food than I was with the fabric of your bowls. I continue to use these for h2o. https://fernandoalwgq.myparisblog.com/36101293/considerations-to-know-about-pet-shop-in-jlt