Private Lodges form the backbone of Freemasonry, with the sole right to elect their own candidates for initiation as Masons or admission as joining Masons, and sometimes with exclusive rights over residents local to their premises. There are non-local Lodges where Masons meet for wider or narrower purposes, such or in association with some hobby, sport, Masonic research, business, profession, regiment or college. The rank of Master Mason also entitles a Freemason to explore Masonry further through other degrees, administered separately from the basic Craft or "Blue Lodge" degrees described here, but generally having a similar structure and meetings.