I went by the previous review. Thinking the bowls weren't that big, I bought a medium bowl last week. Far too big for my 4-month-old Lab puppy. I'll use it when she is older. These are very good quality dishes. Easy to clean.
The Large size is what I would consider Medium-small... it's far too small for my large mastiff partially blind senior but great quality at a great price. Getting the label off the interior may be a challenge but I plan to use it for soak-sprouting pulses, since it's the perfect size for this.