Precise shape duplication: easily copy any shape or duplicate a profile exactly for woodworking or tile flooring/ linoleum installation where you want to replicate the shape of moldings or match cut-outs around door casings and pipesPractical gauge: the contour gauge is useful for measuring moldings for reproduction, copying curves and a variety of other contour matching jobs around the home and shop; It fits most pipes and round columns and allows you to easily copy shapes to precisely cut flooring to match objectsPlastic 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 duplicatedSize: the larger contour gauge measures 25 cm/ 10 inches in length, 10 cm/ 4 inches in width, and the smaller one measures 12 cm/ 5 inches in length, 10 cm/ 4 inches in width with plastic material to stick on the object completely, and they will not rustEasy to use: press the teeth against the object to match the contour and then trace the shape you need; It has good cutting line that is clear enough and easy and convenient to read