[First Class Solid Brass] This vernier caliper is made of non-magnetic solid brass, will not rust and is stronger than a hardened steel saddle. Enjoy many years of good work experience. The clamp is made of high quality brass, strong, non-magnetic and durable. [Meter] This mini vernier caliper can be used to measure precision objects and rooms, and is ideal for measuring gems and other pieces of jewelry. Scale in millimeters and inches. Dual scale design. The caliper has graduations in millimeters and inches. The high precision will make it an ideal instrument for your daily use. [Retro Copper Style] This is a vintage style fine gauge ruler with a nice appearance. Without electroplating, the ruler preserves the original nature and color. Over time, the copper gradually oxidizes into a unique retro charm that's worth playing around with. [Easy to use] selective material and intricate finish ensure the durability and accuracy of the ruler. The simple design allows easy use, it can also be used as a bookmark. [Pocket format] The mini size makes it light and comfortable to carry, you can easily put it in your pocket. Pure handmade vintage style ruler will amaze those with artistic temperament, perfect gift idea. Specifications: Measuring range: 100 mm (optional). Material: brass. Quantity: 1 Package includes: 1 x Vernier Caliper