Feline Greenies Smartbites Hairball Control Treats for Cats are the perfect treat to keep your cat purring all day long. Designed by veterinarians and created with Greenies Fiberblend Formula, these treats help minimize and control hairball formation and support healthy digestion in your adult cat when fed in conjunction with a hairball control diet. Featuring a mix of crunchy and creamy textures, these cat snacks have less than 2 calories, and added vitamins, minerals, and other nutrients for a nutritionally complete and balanced snack. Plus, these irresistible little treats come in a delectable chicken flavor and are made with natural ingredients, plus vitamins. These Feline Greenies are the healthy, tasty hairball control treats your cat will love.