Lightsabers are fictional energy swords featured in the Star Wars universe. They consist of a hilt that emits a blade of plasma, which is contained within a magnetic field. Lightsabers come in various colors, often representing different Jedi or Sith affiliations. These weapons are primarily used by the Jedi and Sith, who are skilled in the use of the Force. In combat, lightsabers can cut through most materials and are effective for both offense and defense. The iconic sound of a lightsaber is created by a combination of sound effects and music, enhancing their dramatic presence in the films.