The larger atomizer coil and battery makes the Yocan Evolve Plus Vape Pen better than its original Yocan Evolve. The built-in silicone container is present at the bottom of the battery. This will enable you to store your materials in a discreet and convenient manner. The use of QDC (Quartz Dual Coil) technology in the vape pens enables smooth flavor. In order to prevent any leaks or mess the coils have been equipped with Functional Coil Cap.