We bought THESE whenever we were feeding "Neighborhood" cats they usually were quite useful. I do know They are plastic, but I had been far more concerned with holding the ants out from the food than I used to be with the fabric on the bowls. I however use these https://petshopdubaiopennow03677.life-wiki.com/1568825/the_2_minute_rule_for_mirdif_pet_shop