Rex Enail Kit from Yocan is a convenient portable and quick enail vaporizer kit. It features QTC (quartz tri coils) for giant clouds and hits, comes with 3 adjustable voltage options: 3.2V, 3.7V, 4.2V. Single button design will bring you easy and convenient vaping experience. In addition, you can customize and control the amount of vapor being inhaled to optimize your experience. Rex has 1400mAh battery capacity and type-c charging type, which will provide you longer vaping. It fits in 14mm and 18mm ground joints. The universal adapter on the Rex can be flipped over to make the unit both male and female downstem compatible.