This 5 pack of replacement Yocan Evolve Plus XL Coils packs big power! Each atomizer features 4 quartz rods for quadruple the vapor production. Expect giant clouds of flavorful vapor in seconds. A convenient coil cap prevents spills and promotes better conduction. For cloud chasers, this powerful quad coil atomizer is a must. The Yocan Evolve Plus XL Coil is designed for use with the Evolve Plus vaporizer.