The Multiscribe is a profile matching tool used to transfer contours from one shape to another and mark on to various materials.
Many tools in one - Parallel Scribe, Convex Scribe, Profiling Scribe, Contour Scribe, Compass, 90° Square, Plumb Bob, Vertical Level, Horizontal Level, 45° Mitre Gauge, String Line, Line Block, Depth Gauge, Picture Hanging Gauge, Metal Scribe and it's got a built-in pencil sharpener too!