WIDE APPLICATION & SUIT DIFFERENT IRREGULAR SHAPES The self-locking profile gauge tool fits the shape perfectly and keeps its pattern. The multifunctional measuring ruler is suitable for the installation of tiles, laminates, round frames, pipes, coiled pipes, window and door frames, ducts, carpet, vinyl flooring, wood, porcelain, car bodies, stainless steel, irregular edges, etc, easily obtain measurement data and repeating curves. EASY TO USE & ACCURATE MEASUREMENTSimply push the contour gauge up to the object, pull it away, trace your new contour and make your cut with confidence! It has a good cutting line that is clear enough for cutting and forming, and the metric and inch scales are easy to read and mark, saving time and effort. A tracking tool for professional engineers, carpentry and home measurement. HIGH-QUALITY MATERIALS The contour duplication gauge made of ABS plastic is light, rust-proof, sturdy and well-structured. Fine production does not scratch the original appearance of the shape to be copied. The material meets environmental requirements, contains no harmful substances, and is suitable for use by adults and children. Have fun with kids now! PERFECT SIZE & COMBINATION 10 inch extend version and 5-inch outline gauge give you on extra length for a multi-scene application. Copy the sharpness of various copied models at any time or match the cutting edge to meet the needs of daily work. The small size measuring ruler is convenient for you to carry around and measure in the field.