Marijuana Pre rolls are simply off the shelf, ready to smoke joints, buds twisted in a rolling paper. One of the most popular ways herb is smoked. Pre-rolls can be purchased individually or in packs of four or more. Aside from all the different natural hemp, and traditional rolling paper choices, pre-rolls can be filled with specific brand name strains, a blend of indica, sativa or hybrid strains, or just high-CBD flower. Some pre-rolls can be even be infused with high-THC oils, kiefs or extracts, making them even more potent and costly.