The Streamline 1 Roller come with many extras including, generous space for all your bowling accessories, including the shoe storage space that fits up to size 15 in U.S. men's. Made up of 600D Polyvinyl. Ultra duty telescoping handle provides stability and control when heavier loads are applied. Also includes adjustable non-slip shoulder strap. The heavy duty construction and tough bearing wheels make the Streamline 1 Roller extra though and durable.