The Plastic Kennel-Gear Bar Mount Bowl System comes with the bowl (20 oz in size) and Bar Mount. The application is designed for mounting to bars, mesh, wire crates and solid surfaces (solid surface mounting does not require the back plate and thumbscrews). The system allows you to mount your bowl to the perfect height for your pet creating a safe a relaxing feeding environment. The plastic bowls are constructed of durable FDA food grade polypropylene and are dishwasher safe.