Step 1. Prepare the contour gauge and the tools you need. Step 2. Use the contour gauge to measure the profile of the corner. Step 3. Just marker the contour on the carpet or tile and cut into the trace. Step 4. Then the carpet or tile will completely match the contour of the corner Great tools – make your work easier, if you have any questions or problems with the product, please contact SENRAN in time. Instant template for marking precise cuts-High precision calibration for accurate measurement, and makes measuring and cutting easier. Easy to use-Press the teeth against the object to match the contour and then trace the shape you need. Designed to go around pipes, round frame, conduits and many objects Constructed of high quality ABS plastic for strength and durable use Note:Due to the lighting effect, there will be color difference between the object and the picture. 【WIDER, SO COPY SHAPES MORE EASY】SENRAN simple gauge is wider than other brands, so it can easily copy any shape, creates an instant template for curved and odd-shaped profiles simply and easily. SENRAN contour gauge duplicator can be used to locate profiles or edges and accurately transfer to the material to be cut. For any kind of work needs the contour duplication. In woodworking, auto body, auto metal sheet, stainless steel or any job of contour duplication. 【SAVE TIME & ENERGY】SENRAN master outline gauge is a good helper for the carpenter.It can duplicate any irregular shape template instantly. No need to transfer profiles to paper or cardboard again to save your time. Record the cross-sectional shape of a surface with this gadget maverick contour gauge. Simply press the simple gauge onto a shape. Copy the profile and cut to shape.This contour duplication gauge eliminates the guessing of dimensions of irregular shapes. 【HIGH QUALITY & BOTH INCH AND CENTIMETER MEASUREMENTS】SENRAN instant template is made of high-quality ABS plastic, high strength, rustproof and durable, no rust plastic conforms to shape and holds pattern. Designed with 10 inch/25 cm multi-functional contour profile gauge markings with both inch and centimeter graduations are on the tough and durable plastic body of the simple gauge. Both sides size mark is available. 【MULTI-SCENE APPLICATION】SENRAN 10 inch widen contour gauge is designed for winding pipes, circular frames, ducts, and many objects. Designed for winding pipes, circular frames, ducts and many objects, Ideal for fitting tiles, laminate, carpet, checking dimensions, molding, etc. SENRAN contour duplicator tool could be a useful tool for operations on car bodies, carpentry and all kinds of modeling. 【12 MONTHS WORRY-FREE WARRANTY】:SENRAN offers 24-hour friendly customer service,90-DAY 100% Money-Back Guarantee and 12 Months Worry-free Warranty. If you have any issues with SENRAN profile gauge, please feel free to contact us.