I realize They are plastic, but I had been much more involved about holding ants out with the cats' food than I had been about the material on the bowls. I however make use of them for h2o for my (indoor) cats. Michael Paparo August 29, 2018 I've 3 relations https://pet-shop-dubai-hills-mall42974.wikilima.com/1416468/everything_about_uae_dogs