Microscope Accessories Kit Microscope Adjustment Coaxial Coarse and Fine Focusing Arm Holder E Arm Head Holder Bar Hole 25 Mm Microscope Slides

Diameter of opening for stand post (arbor): 1" (25 mm)One scale of fine focusing: 0.002 mmRotating 360 degree of coarse: 37.7 mmPackage Included:1x microscope focus adjustment arm holderNote: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.

• New focus rack with ball bearing, Coaxial coarse and fine focusing.
• Diameter of annular ring holding microscope head: 3" (76 mm). Suit Microscope: zoom stereo microscope.
• Professional and practical design with beautiful appearance, easy to carry and use.
• Usually used in laboratories, schools, teachers, sample observation, eyepiece protection, etc.