Gehmann Clip-On Black Iris for Ordinary Glasses
Easy connect to all glasses.
Rubberized clips protect the lenses of the glasses.
The infinitely adjustable iris diaphragm can be moved for optimal positioning in all directions or positions.
The iris has a special anti-reflection coating, which is not only pleasant to the eye, but also protects against rust and made a smooth surface for adjusting the iris.
Can fold up for normal viewing.