Bubble Carb Caps are the latest innovation in the dabbing scene. They work best with thermal bangers and allow you to move the cap around to ensure you use up all of your concentrates. The bubble design allows you to control the direction of airflow to maximize oil vaporization for low temp dabs. This directional carb cap is a must have dabbing accessory. Bubble carb caps do also work with quartz banger nails but work best when using a thermal quartz banger.
The Large Bubble Carb Cap works great with thermal and larger nails.