The FELIWAY Friends Diffuser is an easy-to-use solution to help reduce signs of conflict between your cats, such as fighting, chasing, blocking, or staring. A clinically proven solution to help your cats get on better. Feliway Friends contains a synthetic copy of the cat-appeasing pheromone (CAP) naturally produced by a nursing mother for her kittens after birth. This pheromone helps the kitten feel safe and secure and promotes a bond between them and their mother. This has the same effect on an older cat. FELIWAY Friends was the first product that was scientifically proven to reduce conflict and tension between cats living in the same household. Replacing the refill regularly ensures your cats are being provided with these supporting cat pheromones at all times, and is where the best results are seen. Each refill lasts up to 4 weeks and will cover 70 m2 (approximately 3 bedroom house). Can be used by any cat of any age to provide support. The Feliway Friends diffuser should be plugged into a socket in the room most frequented by your cats, and where most of the conflicts break out.