The curved lip helps contain the drips and splashes and also helps keep your dogs beard out of the bowl.The integrated notch in the bowl's rim is designed to make the bowl easier to drain and clean.The bowl capacity is 42 oz / 5.25 cups and is 8" in diameter by 2" high.The bowl is made from high quality food grade safe silicone, is BPA and PVC free and odor and stain resistant.Dishwasher safe and will not discolor over time.