Most local Shinto shrines host their own festivals for the surrounding neighborhood, usually once or twice a year according to their own traditions. In these events, local customs often call for a group of men to carry a small (70–150 kg) portable shrine around the shrine grounds while accompanied with drummers, people in costume, and sometimes pairs of people throwing long bamboo staffs. Each shrine and neighborhood has its own customs (one or two even have the attendees engage in sumo), but due to an ever-dwindling population, many of these traditions are being lost.