ZTBH Microscope Accessories Kit 955 Microscope Special Micrometer Measuring Scale Inch MM Circle Calibration Slide for Optics Secondary Element Projector Microscope Slides(1pcs)

SpecificationsMaterial: Optical GlassSize: 88.5mm x 31.5mm x 2mmPackage: 1 piece packed in retail boxThere are 19 dots in total. the dot diameter size from small to large is:0.03mm 0.04mm 0.05mm 0.1mm 0.15mm 0.2mm 0.25mm0.05mm 0.127mm 0.254mm 0.508mm 0.889mm 1.575mm 3.175mm6.35mm 9.53mm 12.7mm 19.05mm 25.4mmNote:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.

• Material: Optical Glass. Size: 88.5mm x 31.5mm x 2mm.
• This calibration ruler has a total of 19 circles, the smallest is 30um, and the largest is 25.4mm (1inch).
• There are 19 dots in total. the dot diameter size from small to large is: 0.03mm 0.04mm 0.05mm 0.1mm 0.15mm 0.2mm 0.25mm/ 0.05mm 0.127mm 0.254mm 0.508mm 0.889mm 1.575mm 3.175mm/ 6.35mm 9.53mm 12.7mm 19.05mm 25.4mm.
• Professional and practical design with beautiful appearance, easy to carry and use.
• Usually used in laboratories, schools, teachers, sample observation, eyepiece protection, etc.