Carb caps sit atop a banger or dome less nail to get the most efficient use of concentrates. The carb cap traps the heat, constricts the airflow and spreads the dab out over the hot surface of the banger causing more of the product to vaporize. Though available in multiple heat resistant materials, the caps are mostly made with borosilicate glass and in numerous colorful worked patterns. The functional bubble style allows users to direct the airflow around the banger for the most efficient vaporization. With the lower pressure that is created on the dabbing surface the boiling point drops and therefore takes less heat to create great vapor quality and preserving the terpene profile and flavor.