Wttops 5 inch 10 inch Contour Gauge with lock can duplicate any shape instantly. This profile gauge creates an instant template for curved and odd shaped profiles simply and easily. of Wttops contour gauge: High Quality -- Wttops contour gauge is made of high quality ABS plastic and metal, high strength, no harm to the surface, rustproof and durable; Adjustable -- Contains adjustable tools, which can be adjusted to the tightness you need; Locking -- Once object has been contoured, lock contour gauge teeth in place for correct traces every time; Broadly -- The width of the Wttops contour gauge reaches 5.9inch. Where to sse Wttops contour gauge? --Pipes fitting --Door frames fitting --Wood mouldling shapes --Gauge tiles --DIY projects --Carpet fitting --Floor panels fitting --Fix up old car or make new dashboard --Scribing baseboard on steps --Measuring moldings for reproduction, --Duplicating spindles on the lathe --Copying curves and a variety of other contour matching jobs How To use Wttops contour gauge? Step 1: Adjust tightness Step 2: Copy contour Step 3: Lock contour Step 4: Mark, Crop, Fit