The first thing we have to answer is “what is a cart?” Vape carts (short for vaporizer cartridges) are small vessels that contain smokable cannabis oil. As the cannabis industry grows, so too do the options for cannabis oil and THC cartridge types. Not all cartridges are the same, but you are most likely to find a 510-threaded cartridge that is quickly assembled by screwing the cartridge to the battery that powers it. They are the most popular because they attach to reusable batteries and offer a wide variety of product options (because of the uniform 510 thread, these are often known as the universal vape pen). Other types of cartridges include AiroPro carts and Pax Era Pods. You use AiroPro carts with a rechargeable, refillable device and come in a variety of flavors and profiles. AiroPro carts are popular for the durability and functionality of the accompanying pens. Pax Era Pods, on the other hand, implement a CO2 extraction process that focuses on temperate control, which allows for a higher-end smoking experience for THC pods while also remaining fairly inexpensive.