Vapeonly vMecha mechanical mod is a solidly-built and hard-hitting. With its array of convenient features, the vMecha is an excellent device for both beginning and veteran mechanical mod users. Stainless steel construction and buttery smooth threads ensure that this device can take a beating and also serves to prevent voltage drop. Precise airflow control lets you adjust the draw to your preference.The vMecha can support RBA'S but will not work with SUB ohm IE: 0.9ohm the unit will not fire, 1.1 this unit is a power house. Works with all 510 and eGo threads put your favorite tank on this mech mod and wow it is a power house.