• Blue light blocking reading glasses that filter harmful blue light and offer UV400 protection. • Reduce eye strain, glare, blurred vision, and headaches when using electronic devices. • High-quality acrylic lenses, clear and anti-reflective, comfortable for prolonged use. • Lightweight and durable resin frame with flexible spring hinge that fits most face shapes. • Includes 4 pairs of reading glasses and a high-quality cleaning cloth. • Product weight: 0.019 kg.