The Dopal 8mm Terp Pearl is designed to improve airflow and heat distribution inside a compatible banger. As you inhale, the airflow helps spin the pearl around the banger, moving concentrate across the heated surface for more even heating. This movement helps distribute heat, making better use of the banger's surface while adding a colorful touch to your setup. Its 8mm size and smooth, rounded shape allow it to move freely when used with a compatible setup.