Specifications:Gauge is made of stainless steel, which is durable.The aperture gauge measurement is accurate and easy.Because of its light weight, it can be easily placed in a pocket.Item Name: Aperture GaugeMaterial: Stainless SteelFeatures: Accurate Measurement, Wear-resistant, Light WeightSpecification: 1mm-15mm/1/64"-5/8" (Approx.)Accuracy: 0.1mm (Approx.)Product Size: 9cm x 3cm x 0.3cm/3.54" x 1.18" x 0.12" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Aperture Gauge