Yocan Evolve Plus XL Replacement Coil - Pack of 5 - Quad Quartz Coil DON'T FORGET TO STOCK SPARE ATOMIZERS! The coil features the all new QUAD coil technology that uses four quartz rod heating elements to give you big eNail like hits. What You Get: 1x Pack of Five (5) Replacement Evolve Plus XL QUAD Coils