An Old Fashioned Glass, also known as a rocks glass or lowball glass, is a short, wide glass typically used for serving cocktails. It usually holds between 6 to 10 ounces of liquid and features a heavy base, which helps to stabilize the glass when muddling ingredients. This design makes it ideal for drinks that are served over ice, such as the classic Old Fashioned cocktail. The Old Fashioned glass is often associated with traditional cocktail culture and is commonly used for drinks that require simple ingredients, like whiskey or bourbon. Its straightforward design allows for easy mixing and enjoyment, making it a staple in bars and homes alike.