magnifying glass precision protective eyewear 2.50 to offset the loss of sharpness. This pair of glasses with adjustable temples in length and reclining glasses 3 positions allow you to perform quality work. Bracket anti-slip bridge you provides comfort during use. Features: Branches length adjustable reclining positions Support nose glasses 3 nonslip Loupe: +2.50 Frame: Dark Standard: EN 166 EN 170 (for eye) Packaging: Delivered in its packaging