This cyclone carb cap utilizes specially designed air paths that work together to push your concentrates around like a cyclone. When you inhale the airflow will push your wax around to ensure nothing is wasted and everything is vaporized. This carb cap works on flat top quartz banger nails either 20mm or 25mm size. This carb cap works especially great when paired with quartz terp pearls. Please take note carb cap colors will be chosen randomly upon purchase.