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The lens frame for the SGE masks are made in a way to rapidly fit corrective lenses without the need to use any tool. The lenses are mounted on the frame C 21 which snaps into the inside of the mask. The system avoids the use of glue, ensures a large field of vision, avoids fogging of the lens, and allows the use of standard lenses.
Materials Used
support lenses: polyamide 12
$29.95