Widen Design: Relitec contour duplication gauge comes in two sizes, one is green 5 inches length (14.6 cm), and the other one is red 10 inches length (27.5 cm). Our contour gauge depth increased by 50%, the measuring depth is 3 cm wider than regular, it can be used in more items. The small size 5 Inch measuring ruler is convenient for you to carry around and measure in the fieldDurable Plastic Profile Gauge: Made of ABS plastic, the contour gauge is tough, durable, high strength, and will not scratch the original finish of the shape being duplicatedPerfect Fit and Easy Cutting: Contour gauge duplicator can be used to copy whatever kind of irregular shape easily. You just need to press the profile gauge's teeth against the object to match the profiles or edges, and then precisely transfer to the item what you need to cut. It’s a ultimate template measuring toolEasy To Use: The contour gauge tools are easy to use, just press the contour gauge's teeth against the object, fit the shape of the target object well, then track the shape you need while reading the object sizeWide Application: Contour gauge is used widely in winding pipes, circular frames, ducts, tiles, laminate, carpet, door and window frames, vinyl flooring, wood, porcelain, car bodies, stainless steel, etc. You can use the outline gauge and your multi-angle measuring ruler to make your tiling, metalworking and woodworking more easier