Tranquil Tails understands the importance of keeping your feline friend calm and relaxed. That’s why they’ve created the Tranquil Tails Calming Pheromone Diffuser Scented Refill Pads for Cats. These pads are specially designed for use with the Tranquil Tails Waterless Aromatic Pheromone Vaporizer/Diffuser (sold separately), providing a soothing blend of essential oils and pheromone isolates to help ease your purring pal’s anxiety. Whether it’s separation, thunderstorms, fireworks, or other stressful situations, these refill pads are here to help your kitty feel at ease.