I picked up the Blank 64 oz Insulated Stainless Steel Pet Bowl for my two labs and it holds 8 cups, so I'm not refilling it constantly. The thick walls and non-slip grip on the bottom keep it from sliding across the floor, even when my younger dog gets enthusiastic. It looks clean and simple left blank, and I like that it works as either a feeder or a watering dish. The 18 oz and 32 oz sizes would be handy for smaller pets, but the 64 oz suits my house.