Simply said, pre-rolls are marijuana joints that have already been rolled for you. The sole elements of a typical pre-roll are cannabis, a rolling paper, and a tiny filter that goes into your mouth at the end. Pre-rolls occasionally have infusions or other cannabis products added to them to boost their potency. Pre-rolls can be purchased without any additional equipment (other than a lighter, of course), unlike bowls, bongs, or vapes. Simply lighting the end and taking a big breath is all it takes to smoke.