The Vivi Nova-S is an upgrade version of Vivi nova BDC, it has an exterior metal sleeve surrounding the tank with two small windows that allow you to see how much liquid is left in the tank at all times. It also has a replaceable drip tip that can be replaced with any 510 drip tip.
Size: Φ19mm * 66.8mm
Weight: 32g / 1 piece Pack,
Available resistance: 1.6Ω(3.0-4.2V), 1.8Ω(3.0-5.0v), 2.1Ω(3.0-6.0v)
Available Color: black,stainless,blue,yellow,green,purple,red,pink.