When it comes to the Evolve Vaporizer Bottle, Yocan puts purity and taste above everything else. The practical spiral cap that covers dual quartz spindles prevents oil leakage and keeps the mouthpiece warm. The Evolve Vaporizer Pen is less than 5 inches long and is easy to carry anywhere. This concentrate vaporizer is a simple task thanks to the immediate heating time. A double quartz coil, a paddle tool, and USB loader are provided on this Yocan vapor pen.