Round Blue & Green Light Blocking Glasses Red Lens Sleep Glasses R2313-R100 Color:Purple Red Frame width about 5 3/16

Frame width about 5 3/16 inches (131mm)

visual discomfort

Temple length about 5 1/2 inches (140mm)

block 67% within 440nm

Round Blue & Green Light Blocking Glasses Red Lens Sleep Glasses R2313-R100 Color:Purple Red Frame width about 5 3/16Ideal for nighttime screen use, late night reading, or pre sleep relaxation, these glasses protect your eyes and help you fall asleep faster and wake up refreshed. Metalless & Screwless: No screws, no metal just flexible, durable hinge that snap back perfectly every time. Strong screwless hinges no worries about breaks or lost pieces. Ultimate Blue and Green Light Blocking: Red lenses filter out 100% of sleep disrupting blue and green light. Frame