Disposables vape pens are the most convenient vape pens on the market. The vaporizer battery lasts for the full use, so there is no need to charge before vaping. You just pick up and go. They are even prefilled, taking out any of the work for the user. There’s no need for maintenance or cleaning since they are simply thrown out when emptied. The size is also a convenience factor. http://www.fanwellvape.com/disposable-vape-pen/