Mirror Knife

At its core, a mirror knife is a small tube containing a battery and a miniaturized Tein machine. Containing a rejected particle from a failed mirror plane exploration mission, the mirror knife can with the push of a button transport a small quantity of matter in front of the emitter to parts unknown, likely to the inside of a star in another universe.

While handheld mirror knives can generally only generate fields about as large as the palm-sized tube emitting them, these devices are still heavily restricted and considered highly dangerous. There is no method to defend a structure against a mirror knife, as the Tein process will even sever molecular bonds. Authorities generally try to avoid these devices falling into civilian hands, but they are used in industrial processes, by militarites, and by law enforcement. The crucial Tein machines do require advanced precision engineering to manufacture, so these efforts are mostly successful.

Some mirror knives contain adjustable emitters, allowing the user to control the size of the space which is transported through. The energy draw of mirror knives varies depending on the construction of the Tein machine, the size of the field, and even details like whether the user is under a strong gravitational pull.

Components

A mirror knife is composed of an outer casing, often made of a heat-resistant material to increase the chances of the device surviving a loopback activation, a miniature Tein machine, a battery, a safety, an emitter, and a trigger. The most expensive individual piece is the Tein machine, as it requires the production and maintenance of a tiny absolute vacuum held together by magnetic forces. Thus, the knife always draws a small amount of power to maintain the Tein field.

All mirror knives come with an origin mark, indicating the system and plane in which the particle held in the Tein field was captured. Using the device in the opposite plane will trigger a loopback failure rather than transporting matter.