What is pepperoncini?

They are small, yellowish peppers that are bottled with a vinegar solution. They are not hot. They have a mildish sweetish taste. They can be found in the same aisle that olives, pickles, and condiments are found. They can be used in salads on sandwichs or just crunch on them right out of the bottle for a low carb, low fat, low calorie snack.