• Both hands are free to work.
• For leisure and hobbies as well as work.
• Various notching options for different height adjustments. The shield can be simply flapped up when not needed. Interchangeable lenses snap into high grade plastic housing.
• Headband has adjustable strap and foam lining for greater comfort and ease of fitting.
• PXM lightweight aspheric llens with scratch resistance surface coating.

Headband Magnifers:
No. 9831-A with 1.7X lens (working distance 15-3/4")
No. 9831-B with 2X lens (working distance 9-3/4")
No. 9831-C with 2.5X lens (working distance 7")
No. 9831SP with 3X lens (working distance 6-1/4")

Additonal interchangeable lenses :
No. 9832-C, 1.7X (working distance 15-3/4")
No. 9832-D, 2X (working distance 9-3/4")
No. 9832-E, 2.5X (working distance 7")
No. 9832-F, 3X (working distance 6-1/4")