The Grand Inquisitor's lightsaber

"Does yours do that?"

- Ezra Bridger to Kanan Jarrus

The double-bladed spinning lightsaber was a unique variant of lightsaber wielded by the Empire's Inquisitor.

Specifications
The weapon featured a ringed emitter which could partially detach from the cylindrical handgrip in the center, allowing the twin blades to rotate rapidly without effort from the wielder.

The Inquisitor's personal weapon could also separate into two single-bladed lightsabers, and the handgrip could be removed entirely from the ring-shaped emitter, allowing the Force-imbued circlet of metal to be used as a throwing disc.

Behind the scenes
The spinning lightsaber was an unused concept for the video game  The Force Unleashed.

Appearances

 *  Star Wars Rebels: Spark of Rebellion (Appears in Hologram)
 * ''A New Hero
 * The Inquisitor's Trap
 * Beware the Inquisitor