• The wire cloth shield has the dimensions 200x135mm and a window opening
• Lenses with Ø of 50mm fit into the sturdy window frames
• The lenses are securely clamped in the frame by two steel springs and are easy to change
• The wire cloth is surrounded by an aluminium frame
• The inside of the goggles is blackened so that the wearer is not blinded by glare from the inside
• The Bochumer Brille can be attached to the hard hat by means of a hinge or an aluminium rail