When deactivated, a lightsaber appears as a polished metallic handle, about 30 centimeters long, lined with control studs. At the press of a button the energy contained within is liberated and forms as a shaft of pure energy about a meter long. The saber hums and scintillates with a distinct sound. Its shimmering blade is capable of cutting through almost anything, save for the blade of another lightsaber.

In the hands of a Jedi, a lightsaber is almost unstoppable. It can be used to cut through blast doors or enemies alike. Using the Force, a Jedi can predict and deflect incoming blaster bolts, and reflect them back at the firer.

After the extermination of the Jedi ranks, lightsabers became rare relics. The knowledge of their construction disappeared with their masters. Luke Skywalker, the last of the Jedi, built his own lightsaber as the culmination of his training.

Although use of the lightsaber is strictly reserved to the Jedi -- the only ones capable of handling the difficult weapon -- it is also used by their sworn enemies, the Sith.