The GeekVape Peerless RDA is a rebuildable drip atomizer with a unique build deck that is designed to support both standard and complex coil builds. The Peerless RDA features a special split bridge post design which creates a open liquid chamber for additional wicking surface area. The additional post hole allows for a more wider variety of coil builds. The GeekVape Peerless RDA is designed for both single and dual coil builds. The Peerless RDA features a nine hole adjustable side airflow system that may be adjusted to your personal preferences.