This Side Angle Bubble Carb Cap is similar to a regular Bubble Carp Cap except it has the airflow hole on the side. This unique design creates a vortex like airflow in your banger to move around your excess oil. This carb cap works best with thermal bangers and flat top bangers. It even works well to spin terp pearls in a banger. Available in a few different colors this Side Angle Bubble Carb Cap is great for any dabbing set up. This carb cap will ensure none of your oil is wasted.