The AiroPro utilizes a CCELL cartridge that isn't threaded. As opposed to threading, it has a straight magnetic connector. The magnetic connection needed to be adjusted at times by popping the atomizer back in and pressing it. See down below our movie overview to the AiroPro vape pen and cartridges. https://raymonddpyhy.activoblog.com/35821990/airo-vape-carts-24-hour-delivery-options