Vaporesso FORZ RDA Tank This RDA is designed for use with the Vaporesso FORZ TX80 modVaporesso FORZ TX80 Kit. Built from stainless steel, the FORZ RDA allows for single and dual coil configuration and features honeycomb airflow control for a smooth inhale and superior flavor and vapor. Included is a BF pin to convert the RDA into a bottom-feeding atomizer, as well as 510 and 810 drip tips. Features and Specifications: 24mm Diameter 4.5ml Capacity Pyrex GlassStainless Steel Construction DIY Coil