No more fragile rulers, stainless steel will rust. And say goodbye to chipped wooden rulers and faded marks on fragile rulers. The metal ruler is flexible enough to measure curved surfaces without breaking Suitable for classroom, school, office, home, drafting tools and drafting kits, can be used on canvas, glass, leather, wood and so on, 3 different size rulers meet all your needs 3 SIZES - Optional metal ruler, size is 6/8/12" stainless steel ruler. Hanging Hole - Easy to store the ruler after use Sharp and accurate scale, markings are etched and filled with paint. The measurements in inches and meters are clear and the numbers and text on the page can be clearly visible. The mark is intended to measure any object These metal rulers are widely used for artists, designers, architects, engineers, carpenters, drywallers, architects, and do-it-yourself, Manufacturer: Pffiocix