The Green Interactive Slow Feeder by Northmate, is specially designed and shaped like a tuft of grass which turns your dogs meal into a challenging game. The desired amount of dog food is scattered across Green, and it is up to your dog to push the food out between the many blades of grass. Green slow feeder prolongs eating time significantly and reduces the risk of gulping and bloat. The result is a happier and healthier dog. Designed for all dogs regardless of weight and breed. It can contain both dry and wet food. Made of hard plastic (without Phthalates) and can be used outside and cleaned in your dishwasher.