Head Vision Ergonomic headband with 2 junctions, size adjuster and replacement sweatband.

Optic Vision Flip-up Galilean optical unit Magnifying optical system with galilean telescopes that allows you to use your own eyeglasses for far distance Working distance: 300, 350 and 400 mm Magnification: 2x, 2.5x, 3.2x THE PACKAGE CONTAINS: - ergonomic helmet with size adjuster - Galilean optical group - user manual - Allen key to adjust the friction of the optical group