• Blue light blocking: Reflects and filters blue light to prevent color distortion and improve sleep quality. • Durable lenses: Multi-layer coating that increases surface hardness, preventing scratches and abrasions. • Classic and lightweight design: Ultra-lightweight frame with a universal size that fits most face shapes. • Eye strain relief: Reduces symptoms such as dry eyes and headaches caused by prolonged screen exposure. • Sleep improvement: Helps regulate the body's internal clock, facilitating better nighttime rest. • Specifications: Frame width: 140 mm, lens height: 30 mm, lens width: 53 mm, leg length: 140 mm. • Material: Polycarbonate frame and AC lens. • Includes: 4 reading glasses, 4 hard protective cases, 1 cleaning cloth, 1 glasses cord, 1 blue light blocking test card, and flashlight.