Magnification 8x 

Bore diameter 32 mm 

Measuring eyepiece micrometer for microscopes MBS 9 and MBS 10. 

Measuring grid included (useful for watchmakers when correcting a hair of balance). 

 How to change the measuring scale to the grid showed in the photo (you need to unscrew the lower part of the eyepiece, then unscrew the locking ring, remove the glass with the scale and install the glass with the grid). 

If you remove the clip with the measuring scale from the eyepiece, you can use it like a regular eyepiece. The eyepiece has its own sharpness adjustment system (the upper part extends).

 The eyepiece can be used with any microscope model with a 32mm eyepiece seat. 

 I will answer all questions.