MUTATION X V4 S RDA 1:1 Available in : SS/SILVER, BLACK Product Features: Multi-sized Angled Bottom Airflow 1.5mm, 2.0mm, and 3.0mm Airflow Controlled By Included Silicon Sealing Plug Dual Parallelogram Side Airflow Array 18 Total / 3 x 3 Array 2mm Each Bladed Angular Side Airflow Control Single, Dual, or Fully Closed 11mm Widebore Competition Drip Cap Delrin Tip Flush Heat Reducing Delrin 510 Adaptor Top Cap Polycarbonate Chamber Extender Compatible With Either Top Cap Deckmilled Negative Posts 2mm Postholes Split Positive Post 2mm Postholes 5mm Deep Juice Well Philips Screw Heads Triple O-Ring Secured Base 304 Stainless Steel Silver Plated Copper Connection PEEK Insulators Iconic Project Sub-Ohm Logo Individually Serialized 100% Designed, Engineered, and Developed in the USA solely by Project Sub-Ohm Cloned