No matter how you dab, a carb cap is a must. This carb cap has a smooth round design, made with durable glass for longevity. It pairs perfectly with a quartz nail to lock in heat and optimize vaporization. This carb cap creates a seal on the nail, and allows you to swivel it around the nail to facilitate airflow. Choose between subtle shades of purple, pink, green, and yellow to perfectly compliment your dabbing setup.