All these Pen Style Atomizers are by far the most popular atomizers to use with a Pen style battery. They are extremely easy to use and all of them provide an excellent vaping experience. Because the atomizer are the critical piece of a good Personal Vaporizer (PV), VapeShop only carries the best and latest Atomizer design like the Aspire models, the Joyetech models, etc. We constantly upgrade our atomizers to the latest and greatest designs, and we discontinue any older models that are simply not good enough in our opinion. It still amazes us today that so many vendors still carry these older models. At VapeShop, all our atomizers are coil replaceable. Replacing the coil of your atomizer is very easy and will make your atomizer vape like a brand new one. This makes for a very cost effective vaping solution.