Yocan Evolve Plus Coil is an innovative coil head for Evolve Plus Wax Kit. There are Quartz Dual Coil (QDC) and 0.8ohm Ceramic Donut Coil for you to choose from. The Quartz Dual Coil (QDC) is crafted with quartz instead of traditional fiber wick for the purest flavor. And the Ceramic Donut Coil features air inlets placed on the sides of the ceramic cup to avoid wax leaking from the bottom of the coil. 5pcs each pack. Get them for your Evolve Plus kit to enjoy different and amazing vaping!