Manual debugging, tighter teeth, no looseness, more fine workmanship. Features: Simple type selection: suitable for measuring and imitating various shapes, such as cylinder and irregular object. Precise measurement: clear scale of metric system and English system, convenient and quick unit conversion. High density symmetrical bar: ABS material, precise repetition. It can be used to measure the shape of floor, carpet and water heating. Suitable for installation of tiles, laminates, carpets, check size, molding, etc. It can be used to measure the shape of irregular objects. Specifications: Material: ABS Color: red Item size: 5in, 10in (optional) Packing List: 1 * Contour Gauge