Alfie Pet by Petoga Couture - Erin Slow-Down Pet Water Bowl (for Dogs & Cats) Top of the bowl diameter: 7", bowl bottom diameter: 9", height: 3.5", volume: 24 oz. It's best for small to medium size breeds. Innovative drinking bowl that encourages dogs to drink at a slower, healthier rate. Obstacle in the middle controls the flow of water; helps avoid slopping water around the feeding area. Ergonomically designed with rounded edges for no discomfort while feeding; non-skid bottom; dishwasher safe. Can be also used as a food bowl with the obstacle in the middle removed.