Beaphar's Calming collar reduces stress and behavior problems in cats of all breeds, thanks to valerian and lavender extract, and ensures your cat's well-being and calm within an hour of putting it on. The manufacturing process of this necklace allows a long duration of action, since the active ingredients are released continuously for 4 weeks. It is ideal for stressful events (holidays, vet visits, moving house, storms, fireworks) and behavior problems (scratching, urine marking, excessive meowing, difficult life situations). The collar is equipped with a safety system: if your cat gets stuck on the collar, it releases so that it can stick its head out. Measurement: 35cm It is recommended to place the collar around the cat's neck, making sure that it is comfortable by running two fingers between the skin and the collar. Cut off the protruding part of the buckle. Avoid contact with other collars so as not to compromise the effectiveness of the Beaphar Calming Collar. Keep the neck wrapped until you are ready to wear it. In case of contact with water, dry the collar, which will recover its full effectiveness once dry.