Do you want the cleanest and smoothest vaping experience? Try this Yocan Evolve Plus Quartz Dual Coil. Why? please go deep read, here we go. Features: Height: 22mm Diameter: 14mm 510 Threaded Fast Heating Huge, Clean Hits Medical-Grade Material Quartz Dual Coils Recommended Wattage: 10-20W Resistance: 0.8ohm Coil Cap NOT Included The Yocan Evolve Plus Quartz Dual Coil can't compatible with all Yocan units. As we know, the Yocan Evolve Plus features dual coils made from quartz, as opposed to traditional fiber wicks, offering the cleanest and smoothest vaping experience. Don't ever be caught without a replacement coil ready to go, grab a coil 5-pack so you're always vape-ready. It is a set of quartz rod coils replacement atomizer heads, implementing a 0.8ohm Quartz Dual Rod Coil structure to retain the original flavor of the concentrate or essential oil.