Optivisor Binomagnifier No.5 - 2.5x Magnification

Optivisor Binomagnifier No.5 - 2.5x Magnification Optivisor Binomagnifier No. 5 - 2.5x Magnification Optivisor lenses are ground and polished to opthalmic standards. The frame is made of lightweight plastic that is durable and impact-resistant, the padded headband can be adjusted to fit any size quickly and easily, the fully pivotable visor allows easy flip up viewing, lens spec no.5 2.5 x mag 8" focal length.