Got a cool rig, a good nail and all you need is a carb cap? This Universal Directional Carb Cap will look great on any piece. 

Designed to provide directional airflow, this cap allows you to direct the airflow as you smoke to ensure your concentrates get fully vaporized. This also improves the flavor and is an awesome choice if you enjoy low temp dabs.

Made with worked borosilicate glass, this cap has a 28 mm diameter. Completed with a color accent top.