The Trixie Slow Feeding Rocking Bowl grey and blue is an innovative product that helps your pet to eat more slowly and improve digestion. This bowl has a special design that makes it rock and move while your dog or cat eats, forcing them to use their intelligence and skill to get the food. Features: prevents gulping of food due to wobbling movements, food falls off the edge into the bowl variable degree of difficulty due to adjustable liner opening non-slip and silent due to the TPR floor for dry food TPR plastic/rubber Diameter: 23 cm