This is a 180 degree Joint that can also be put into a 360 degree rotation on the ends. This is my second creation, the first posted online. Can be used for toy creations or modified to be as Mods for other toys. Print two halves of Testjoint2a to one center Testjoint2b. The Testjoint2stay is to used in the center (Other materials can be used other that Testjoint2stay. eg: tooth pick) Testjoint2stay does hit in tightly. Tapping may be needed with a mallet or hammer. Only use Slight tapping.