The Modern Orthodontics Boley Gauge is a specialized dental instrument used primarily in orthodontics for measuring and determining the diameter of orthodontic wires, such as archwires and ligature wires. The flat end is good for measuring teeth size and distance of spaces in the mouth. Boley gauges are accurate to tenths of a millimeter. A Boley gauge has a fixed scale and a sliding scale. It consists of a thin, flat metal strip with precision markings or notches along its length, indicating different wire diameters. It is made of high-quality stainless steel, this ensures durability, corrosion resistance, and longevity of the instrument, even with repeated use in dental procedures. The gauge has a compact and lightweight design, making it easy to handle and transport. The Boley Gauge is designed to withstand sterilization processes such as autoclaving, ensuring proper infection control and patient safety.