Distance Measuring Ruler is a must-have for anyone involved in eyeglass fitting and optometry, efficient to measure distance between the eyes, ensuring fit for glasses. Crafted from sturdy material, the ruler is built to last and withstand daily use.The compact and lightweight nature of the ruler makes it easy to carry and use on the go. Its high precision and clear markings ensure accurate results for professional eyeglass fitting. Features -Color:Silver -Material:Aluminum -Size:17.50X2.30X0.03cm/6.88X0.90X0.01in -This is accurate for eyeglass fitting and optometry, efficient to measure distance between eyes. -The sturdy construction ensures durability and longevity, withstand daily use. -The ruler has dual-sided markings, making it versatile for different measurement systems. -Its compact and lightweight design makes it convenient for on-the-go use. -The precise measurements provided by this tool make it ideal for professional eyeglass fitting. Package list: 2 x Pupillary Rulers