Ethical Stainless Steel Coop Cup, 20-Ounce[ 2-Pack] Go to amazon.com Related posts Which is the best dog crate bowls? Feature2-Count (Each Cup holds 20 Ounces)Dishwasher safeRust resistanthygienic and easy to clean DescriptionCoop cups easily attach to bird cages, dog crates and chain link fences. Purchase two for both food and water.