This is a precise stage micrometer that is used to calibrate your microscope or microscope camera for precise measurement.  It comes with 1mm total length that is subdivided into 100 divisions.  That is, each division is 0.1mm.

Specifications:

• Model: A36CALM1
  
• Minimum division: 0.01mm (10um)
• Slide material: Schott optical glass
• Total length of scale: 1mm (100 divisions)
• Slide size: 75mm x 25mm x 1mm

Packing List:

• 0.01mm calibration slide (stage micrometer) with plastic case