Quantity: 1 x caliper Measuring range: 100 mm Scale: mm and inches Material: Brass Made of non-magnetic solid brass, it will not rust and is softer than hardened steel stirrups. I have enjoyed a pleasant and long-standing work experience over the years. For measuring delicate objects and spaces, ideal for measuring gemstones and other jewelry pieces. Scales are in millimeters and inches. Without the electroplating process, the ruler retains its original nature and color. Over time, the copper gradually oxidizes into a unique retro charm worth playing with. Selected materials and careful workmanship guarantee the durability of the ruler and precise graduations. The simple design is easy to use and can also be used as a bookmark. The pocket size makes it easy to carry and transport. The handmade ruler with a vintage look will definitely surprise those with an artistic flair, the perfect gift idea. Good quality product