The 6” Union Pacific Alumicolor Architect Engineer Ruler is a durable and reliable measuring tool made of red metal. With engraved numbers that won't rub off, this ruler ensures precise measurements every time. The metric and standard system of measurement makes it versatile for various projects, while the compact 6-inch length makes it easy to use in tight spaces. Perfect for architects, engineers, and DIY enthusiasts, this ruler is a practical addition to any toolbox or workspace. Also a unique item for those who collect Union Pacific related items.