Dreadlocks, also locs, dreads, or in Sanskrit, Jaṭā, are rope-like strands of hair formed by locking or braiding hair.

The style is visually similar to braids, but whereas braids can be prepared immediately and "finished", dreadlocks properly require a period of maturation which does not strictly end. Various methods are used to prepare and maintain dreadlocks, often including treatment at salons, but merely not brushing nor conditioning one's hair is usually sufficient. All hair types are suitable.

More Info: en.wikipedia.org