A bolt attaches to the remaining bone and completes what is missing. The bolt fuses with the bone, but remains fragile as its own material, running high risk of dislodging or dismemberment. A sleeve made from kinetium foam, runs over the remaining limb and fuses with the skin to allow for building extremities onto the prosthetic. Mobility remains at an all-time high, as the prosthetic also fuses to the nerves and act as such. The prosthetic usually feels like it was always a part of the host.