The VGOD PRO Mech 2 Kit is a high-end device! Powered by a single 18650 battery, the PRO has an explosive output. Made of high quality copper and stainless steel, this mech MOD feels simply brilliant in your hands! The Elite RDA is 24mm in diameter with a dual post design and 2ml-hole per post for an easy building. The finger tight nut is compatible with both Philip or flat screwdrivers. The 9.25mm deep juice well of Elite RDA provides a 2ml liquid storage. Along with the bottom airflow and protruding gold-plated 510 pin, Just get this delicate device and enjoy an amazing vaping experience!