If you don’t already have a Carb Cap we recommend buying one of our terp spinner caps. This extra Dab Nail attachment will retain vapor from dabs, thus saving valuable vapor from escaping. This is an essential dab tool for those who want to maximize their dabs. Our Terp spinner caps come with two airflow and terp pearls. These extra bead looking like pearls will spin inside of the Quartz Bucket when vaping with the Carb Cap. These Pearls are very efficient at vaping cannabis concentrate.