The stem patch is a band-aid made of an unknown material with a tube directed into the depths of the galaxy (its length is unknown). The tube is indestructible. By attaching the stem layer to the body, a person can create a complete copy of themself. During the final growth cycle, the clone separates from the donor. The patch stays on the clone, on the same spot where it was on the donor. The research showed that the clone is not able to grow a copy of itself. If someone peels off the patch from the clone, the clone will disappear, and a small mole will form on the donor’s body.