Hill’s Science Plan Mature Adult Hairball Indoor Dry Cat Food is purrfectly suitable for mature adult cats who are seven years old or older, who spend most of their time indoors. Using Advanced Fibre Technology, it reduces hairballs and makes for easy litterbox clean-up. The high-quality protein feeds and supports your indoor cat’s energy levels and lean muscle, and protects their heart and joint health, while the low fat and reduced calories help to maintain a healthy body weight.