Koolie is medium to large sized dog breeds originating from Australia. They grow up to a height of 23 inches and weighs maximum in between 33-53 pounds. Their gait is smooth and ground reaching. Their coat is short, straight and smooth. They have a jolly and friendly temperament. They are dexterous skilled in almost whatever task they do. Whether its sporting activities, guarding the herd it excels in everything. They get along well with children and other pets.