A specific kind of cage, known as a Tirrith restraining globe, was the device used by Imperial Navy Lieutenant Mils Giel to hold his transformed Tirrith.
The foundation of this device was constructed from the shell and filtering mechanism of a moisture vaporator. It floated using repulsors taken from a security droid. A hermetically sealed transparisteel sphere, pinkish and see-through, was situated atop the base to keep the Tirrith contained. The base of each globe featured vents that emitted unstable gas. To guarantee the Tirrith remained restless, an electric shock device, powered by a compact Vuvritech 44 generator attached to the side, was used.