This cactus carb cap functions great just like most ball caps allowing you to direct the airflow wherever you like.  This cap works really well with all popular quartz nails, including thermal bangers and flat top bangers. 

We love the cactus carb cap not only for the function but also because of the wicked cool design and colors.  Unlike most cactuses this one is easy to grab and point the tip around with your index finger.  This cab does feature a directional airflow functionality as the air comes in from the top middle and releases through a pointed tip on the bottom end, giving you a pin sharp dash of air to push those puddles around and vaporize effectively.