American made by MessyGlass in North Bellerica, Massachusetts
Bubble Cap features:
Side Airflow Hole - This allows for you to easily spin the bubble cap using the top of the cap without plugging the airflow hole. This allows a smoother experience.
Tighter airflow - Having a tighter airflow means more restriction and less room temp air cooling down your quartz banger. Room temp air enters the quartz banger as you use your cap which can cause your banger to cool quickly and result in a cool hit. Tighter airflow reduces the amount of room temp air that enters and allows for a longer, milkier hit.
-1 25mm Bubble Cap by MessyGlass
-20mm and 25mm quartz bangers