!! They're plastic, and they have a good rubber disc on The underside of them. I like The point that the bowls are chrome steel, so I'm able to place them while in the dishwasher to wash & sterilize them now they try to eat raw for evening meal. Many https://eduardoqbjpf.theobloggers.com/41094872/the-smart-trick-of-dachshund-that-nobody-is-discussing