Donegan Optivisor Al Headband Magnification Set : Target
Donegan ACCURLOUPE® AL-1 OptiVISOR® Accessory Lens, adds 2.5x magnification, has rectangular acylic lens for Donegan Optivisors and similar headband magnifiers.
Donegan Optical DA S1 OptiVisor Professional Series Set Headband Binoc Sys | TestEquity
Optivisor LX Magnifier Hands Free Headband for Jewelers and Watchmakers - Watch Battery Tools | Esslinger & Co