The GS Air 2 Tank from Eleaf is a sleek 510 threaded tank. The GS Air 2 is the same tank that is included with the Eleaf Basic Kit. The adjustable airflow allows you to adjust the the GS Air 2 to suit your vaping preference, while the 2ml e-liquid capacity will keep you vaping and not constantly refilling. The Sub-Ohm GS Air 2 Atomizer Heads use Organic Cotton to ensure clean flavor and excellent vapor production. The 510 threading will allow you to use the Eleaf GS Air 2 Tank on any compatible 510 threaded device.