Ambition Mods Bishop MTL RTA is constructed of SS316 & PC & FKM with 22mm diameter and 4ml transparent PC tank for visible e-liquid. Ambition Mods Bishop RTA features two side air-pins with different inner diameter of 0.6/ 0.8/ 1.0 and 1.2 mm to adjust air inlet. Ambition Mods Bishop adopts two 1.1mm e-juice openings to the cotton and bottom fill design.