Cats deserve clean, non-porous, sturdy bowls for their food.  Some cats develop acne under their chin if you use plastic bowls.  They can also be quite picky about their whiskers not touching the bowl while they are eating.  I searched far and wide for a solution that was already in my kitchen!   These custard cups are sturdy so that if they get knocked off the table or the counter they don't break, which is certainly a plus with safety.  They easily hold a 3 ounce can of cat food.  The cups look elegant time after time with minimal care. I really appreciate being able to provide these cups for my companion cats to enjoy their meal.