<p num="15">FIELD: medicine.</p> <p num="16">SUBSTANCE: invention relates to medicine and can be used for teaching students the basics of displacement of non-free bone autografts in treating the consequences of forearm injuries. Device comprises a phantom in the form of a forearm – ulna and radial bones. Locations of the round and square pronators are coated with muscles imitators in the form of bands from light-conducting tissue; ends of strips are arranged in grooves, in which red LEDs are arranged; under the muscles imitators, isolated bone grafts in the form of plates are placed in the beds, the above mentioned transplants are connected to one of the muscle imitator bands; lower surface of plate and bottom of bed are coated with magnetic paint; muscle imitator bands are placed under glass fiber imitators of blood vessels: humeral, ulnar, radial, anterior interosseous arteries connected to ruby LEDs; on the forearm bones there are sections for transplant placement, made in the form of plates removed from