The Contour Gauge Profile Tool features a sturdy aluminum lock and aluminum core. Store easily with your collection of tools. The contour features high density symmetrical strips for precise shapes and contours duplication. Widely used in fitting floors and tiles, carpentry, construction, doing home maintenance, DIY projects, etc. Push the symmetry bar to the end to be used for taking shape before use, easy to take shape with a light push. With a measuring accuracy of up to 1mm, this tool offers high precise measurements for more accurate sizing and shaping.