Polar Bowl by Neater Pet Brands EXTRA COLD - Double walled stainless steel freezer bowl (58 ounce capacity, 7.25 Cups) STAINLESS STEEL WITH GEL CORE - Put it in the freezer and upon removal the gel core will keep your pets water cold for hours. COOL TIP - Freeze a small layer of water in the bottom of the bowl before adding water to extend the duration of the cold water even further. SAFE - Bowl is made of stainless steel. Gel inside is non-toxic and freezable. Colder water is actually healthier for your pets, because it encourages proper hydration. COMPATIBLE WITH NEATER FEEDER - The Large Polar Bowl will fit the Medium/Large sized Neater Feeder Express and the Large sized Neater Feeder Deluxe.