The American Staffordshire Terrier, often referred to as the AmStaff, is a muscular and athletic dog breed known for its strength, loyalty, and affectionate nature. These dogs typically weigh between 55 to 70 pounds and stand around 17 to 19 inches tall at the shoulder. American Staffordshire Terriers have a distinctively powerful build, with a broad head, strong jaws, and a short, glossy coat that can come in various colors, including brindle, blue, or fawn. They have a confident and alert expression, with round, dark eyes and ears that may be cropped or left natural.