The West Highland White Terrier is a small but robust breed, typically standing about 10-11 inches (25-28 cm) at the shoulder and weighing between 13-22 pounds (6-10 kg). They have a dense double coat, with a rough outer layer and a soft undercoat for protection. Their eyes are dark brown, ears are erect, and tails are short and carried upright, giving them a distinctive and charming appearance.