Give your feline friend the gift of calmness with Tranquil Tails Pheromone Calming Diffuser for Cats. Designed to help furry family members who suffer from separation anxiety, fear of loud noises, or general anxiety, this diffuser uses pheromones to mimic natural calming signals, just like a mother kitty to her kittens. It’s perfect for multi-furbaby or multi-pet homes and can be used with one or two refill pads (sold separately) at a time, depending on your purring pal’s needs. The refill pads are available in unscented and three gentle fragrances, so you can choose your sassy sidekick’s favorite.