Cereal Carts. When it involves simple use, portability, and functionality, one cannabis product, Cereal Cartridges stands tall above the remainder. Buy Cereal vape cartridges. you’ll know them as pre-load cannabis oil vape cartridges, hash oil, vape pens, or maybe disposable wax pens. These relatively new and exciting devices have permeated the cannabis concentrate market over the last several years, quickly becoming the go-to concentrate-based product for both the novice and accustomed cannabis fans. When it involves choosing the proper pre-load disposable pen, various factors substitute the way of creating a choice. Although many of those products seem similar initially glance. There are many things that distinguish them from each other.