Manufacturer Part Number: M-170|Mount Type|Number Of Magnification Levels|Maximum Magnification|7x; 7xFocal Distance|Lens Shape|RoundFolding|Lens Material|Lens Diameter|1-1/4 inLens Width|Diopter|Field Of View|Light Source Included|YesMagnifier Inset|Graduation|Frame Material|Batteries Included|Number Of Batteries|Battery Size|Battery Chemistry|Overall Height|Overall Length|Standards|Lens Length|Number Of Lenses|UNSPSC Code|41111713