The WAB Exhaust Stack Brush is a practical and efficient tool designed for cleaning truck smoke stacks. With a circular 4" - 6" brush filled with white tampico, it effectively removes dirt and grime. This brush fits most makes and models, making it a versatile choice for truck owners. Its high-quality construction ensures durability and long-lasting performance. Keep your truck's exhaust stack clean and maintain optimal performance with the WAB Exhaust Stack Brush.