SMOK GX2/4 Kit comes with a GX2/4 TC MOD and a TFV8 Big Baby tank. GX2/4 TC MOD meets all your demands despite being the smallest sized 220W mod on the planet. But don't let the size fool you, its power can upgrade to 350W by replacing the battery cover. When combining with TFV8 Big Baby, you could have double experiences immediately. Resembling the battery cover brings new twins mission vaping era.