Royal Canin Hairball Care Thin Slices in Gravy Canned Cat Food was developed specifically for your indoor cat over 1 year old. Cats who live exclusively indoors are sheltered from temperature variations and changes in day length which disrupts the natural seasonal cycle of fur growth, so your kitty sheds almost continuously. With a constant shed cycle, your cat swallows excessive hair during grooming and has an increased chance of hairballs. This special formula contains highly digestible proteins to promote digestive health, support hairball management, and maintain an ideal weight. This complete and balanced diet provides all the nutrients your furry friend needs and may be fed alone or as a supplement to another diet.