Check the listing for details. Comfort Zone Single & Multi-cat Calming Kit 1 Refill 48 Ml Each. Condition: New. Listed at 22.99 USD. The Comfort Zone Single & Multi-cat Calming Kit includes one refill with 48 ml of product for each cat. Designed by the trusted brand Comfort Zone, this kit provides a calming solution for pets experiencing stress or anxiety. With a focus on providing comfort and peace, this product is specially formulated to create a calming environment for cats in various situations. Whether it's for travel, grooming, or adjustments in the home, this calming kit offers a convenient and effective way to help cats feel relaxed and secure.