Full life-size helm scope from Star Trek Discovery Season 2 U.S.S. Enterprise, and Strange New Worlds.Space inside for electronics, and an optional base that can be bolted using 6mmx50mm bolts to the scope arm and space for counterbalance weight under the base to prevent toppling over.2 versions of the lower arm. one is in 2 parts for smaller printers. The screen hood also has a full and a 2-part version.