The GeekVapeAegis Boost RBA Pods are designed for theGeekVape Aegis Boost Pod System. Each one securely fits within the device via a click-in connection and features an adjustable airflow. Each pod is designed to utilize any pre-built single coil. The customization of the vaping experience is limitless, with a fairly large build deck and top mounted phillips screws. Included in the packaging is everything needed to get started, with a building tool, pre-built coils, and cotton.