Knobloch Universal Model K1 Frames w/ Lens Holder

The K1 is suitable for all disciplines. It has a height adjustable nose piece (adjus-table height from 35 mm to 50 mm). lensholder and case are included. They can be delivered with a choice of a big (37 mm) lensholder or a small (23 mm) lensholder. The ear piece length (from 150 mm-180 mm) can be chosen individually.