From the earlier explanation, we already know where mids lie in the four categories of grading marijuana flowers. With respect to the three classes, mids can be regarded as the mid-point between low-quality and high-quality cannabis. This classification has brought on different names for this class of marijuana flowers over the years. This includes middle, middle shelf, the thirties, middies, and B+.  All these names point to the same thing but what identifies mids are the flower variables. This includes appearance, flavor, cannabinoid content, effects, and price.