NO SHIPPING DO TO THE PACKS ACT
The acronym "RBA" stands for "ReBuildable Atomizers", an important category ofvaping atomizer systems. RTA's and RDA's are both types of RBA. The RTA (Rebuildable Tank Atomizer) is a tank system and the RDA (Rebuildable Drip Atomizer) is a dripper system. With rebuildables, you "build" your own coil.