Amazon.com : Pets4Luv Calming Collar for Cats - Pheromone Calm Collars, Anxiety Relief Fits Small Medium and Large Cat - New Version - Adjustable and Waterproof with 100% Natural 2 Pack : Pet Supplies
Feliway Optimum Diffuser + Refill for Cats
FELIWAY Optimum Refill - Vet Recommended – FELIWAY Shop
Calming collar for Cats with pheromone technology (like feliway) | eBay