These uniquely designed ProSelect Plastic Slow Feeder Dog Bowls feature three center posts that dogs have to eat around, preventing them from gulping their food too quickly. The lightweight design encourages dogs to eat calmly and gently to prevent the dish from slipping and sliding. Veterinarian tested and recommended Helps to reduce the instances of Gastric Dilatation-Volvulus (GDV or "Bloat") Features an elegant, no-tip shapeSee the bowl in action: ProSelect Plastic Slow Feeder Dog Bowls works with FDA approved kibble or canned food. Dishwasher safe. Available in Small (Red), Medium (Blue), and Large (Black) sizes.See the Specifications tab for product details.