Hammered Copper Dog Bowl 2 Sizes Available: 7.0â³W X 2.75â³H. Weight 0.5 lbs & 9.0â³W X 3.00â³H. Weight 1.0 lbs This dog bowl is extremely easy to care for --just soap and water-- and naturally contains anti-bacterial properties that may safeguard your pet from common food or water-borne illnesses. Quite simply, germs and bacteria have a drastically reduced lifespan on the surface of copper in comparison to other materials (like stainless steel) where germs can survive for up to 3 weeks! These bowls are hand formed from the finest quality copper available today. ! ! ! To protect the finish, hard and abrasive cleaners should be avoided. No coarse, acidic, or alcohol-based cleaners should be used. No steel wool, Brillo pads, or wire brushes as they may scratch the copper surface. Clean with hot soapy water and scrub with a soft nylon brush. For tougher stains, try using a paste of baking soda and water applied with a sponge. Rinse thoroughly and dry with a soft cloth.