This 40-inch metal ruler is a precision measuring tool made from durable stainless steel. It features clear, etched measurement markings and a professional-grade construction suitable for technical drawing, engineering, and other professional measuring applications. Key features: • 40-inch length for extended measurements • Durable stainless steel construction • Precisely etched measurement markings • Hanging hole for easy storage • Corrosion-resistant material • Clear, easy-to-read numbering The ruler has a slim profile design that makes it easy to handle and store. The etched markings are permanent and won't wear off over time like printed measurements. The metal construction ensures the ruler maintains its straightness and accuracy even with regular use. A hanging hole at one end allows for convenient storage options when not in use.