The VOOPOO PNP Pod Tank is a direct replacement pod for the Drag X & Drag S Kits. It features a 4.5mL bottom filled e-liquid capacity, compatible with all PNP coils, and is fastened by either a magnetic connection or via the 510 threads. Leave the 510 base adapter on and attach the PNP Pod Tank directly to your box mod. Or remove the 510 base adapter and attach the PNP Pod Tank directly to your Drag X or Drag S device.