A kyber crystal container, opened, is visible inside Savi's Workshop
The kyber crystal container served as a robust and fortified transport unit utilized by the Galactic Empire for the secure movement of kyber crystals. During the Imperial Era, TX-225 GAVw "Occupier" combat assault tanks were deployed on planets like Jedha to move crystals from mines to waiting Zeta or Eta-class cargo shuttles. The containers were then shipped to Tarkin Initiative installations on planets including Scarif and Eadu. Given the critical nature of the crystals, Stormtroopers frequently patrolled areas in close proximity to transport routes.
By 34 ABY, the Gatherers operating from Savi's Workshop, situated within Black Spire Outpost on Batuu, had come into possession of several Imperial kyber crystal containers; the crystals inside were subsequently provided to patrons who sought to learn the craft of lightsaber construction.