WOTOFO NUDGE RDA 24mm has an unique 4-post staggered Z deck with side open post hole system, which offers a great convenience for coil building. 2 side-airflow slots brings concentrated flavor and vapor production. And the floating post design ensures large juice capacity. Gold-plated 510 pin and BF pin are included so that you can use both regular and squonk MODs. The NUDGE RDA is compatible with 810 and 510 drip tip (with adapter).