Uwell Crown 4 / IV Kit combines a Crown 4 tank with a Crown 4 mod. Whether it's appearance or performance, they are a perfect match for one another. The Crown IV tank adopts the advanced patented self-cleaning technology, which can absorb the e-juice in the condensation holder through regular usage and vaporize it. It utilizes a Dual SS904L coil and a Double helix mesh coil to achieve even, consistent heating and produce excellent flavor. 6ml large capacity available. The Crown IV Box Mod is powered by dual 18650 batteries, and is capable of a 200W max output. With its unique baroque pattern design, the Crown 4 mod is visually striking. The new circuit board provides you with a stable and safe vaping experience. In short, the Crown IV kit is a wonderful vape kit that can satisfy the needs of every vaper, and and look great doing it.