Petmate’s Nesting Crock is made of 25% recycled content & are extra thick & chew resistant. These durable crocks resist scratches & nicks that can trap bacteria. Treated with Microban, which helps prevent the growth of stain & odor causing bacteria. They are easy to clean & is dishwasher safe. They come in assorted colors & in 5 sizes, so you are sure to find a bowl for any size pet!