The K&H Pet Products Coolin Pet Bowl is the ultimate in refreshing cool water for pets. Activate cooling crystals by filling the interior with water before first use. Next simply freeze this bowl overnight in the freezer and pets can enjoy up to 15 hours of cooled water. Perfect cooling dog bowl or cooling cat bowl for working pet parents beach trips camping traveling etc. Cooling water bowl is made with PBA-free plastic and requires no electricity to keep water cool. Designed by K&H with OVER 20 years of experience in creating safe innovative quality products for pets; one year limited warranty. Available in two sizes: 32 ounce size is perfect for kittens puppies cats and small dogs and the 96 ounce size is great for any pet.