Round Blue & Green Light Blocking Glasses Red Lens Sleep Glasses R2313-R100 Color:Purple Red there may be a 0

there may be a 0 to 1 cm error

Reading glasses with spring hinges

Frame width about 5 5/16 inches (134mm)

Lens width about 2 1/16 inches (53mm)

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

Round Blue & Green Light Blocking Glasses Red Lens Sleep Glasses R2313-R100 Color:Purple Red there may be a 0Ideal 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