Features:  Precise Shape Duplication: Contour gauge can easily copy any shape, easily copy any shape or duplicate a profIile exactly for woodworking, flooring or linoleum installation.  ABS Material: High strength, rust - proof and durable, no rust.  Save Time & Energy: It can instantly copy any shape. No need to transfer files to paper or cardboard again to save your time.  Wide Application: Suitable for winding pipe, round frame, pipe and other objects, suitable for bonding tile, composite material, carpet, size check, molding, etc. Useful tools for operating automobile bodies, woodworking and various styling.     How to use:  Step 1: get the contour gauge and the tools you need.  Step 2: measure the corner contour with the contour copying gauge.  Step 3: mark the outline on the carpet or tile and cut it into marks.  Step 4: then the carpet or tile will exactly match the contour of the corners.     Specification:  Weight: 1.6 Pounds;  Size: 12.6 x 4.3 x 2.6 inches;  Color: Red and green;  Material: ABS.     Package Included:  1 x 10 Inches Contour Gauge;  1 x 5 Inches Contour Gauge;  1 x Multi Angle Measuring Ruler;  1 x Tape Ruler;  1 x Pencil;  1 x Pencil Sharpener.