• Maximum blue light protection: hours in front of the screen require effective protection for healthy eyes. YUKANG glasses block 99% of the harmful blue spectrum (380nm-420nm) and offer maximum light transmission and better color reproduction. • Super lightweight: made with TR90, BPA-free, with one-piece nose pads, flexible hinges, and elastic arms for greater comfort. • Striking design: anti-reflective glasses with bicolor contrast that highlight personality and are a bold and safe choice. • No eye strain: blue light protection for strained and damaged eyes, with clear lenses that do not affect color fidelity. Optimal solution for office work and nighttime hours. • Box contents: glasses, pouch, hard case, cleaning cloth, screwdriver, and instructions.