Red Lenses Blue Green Light Blocking Glasses for Better Sleep R2512-R100 Color:Black durable hinge that snap back

durable hinge that snap back perfectly every time

Bridge (DBL) about 11/16 inches (18mm)

Office professionals

Plastic lens

They help reduce eye strain

Red Lenses Blue Green Light Blocking Glasses for Better Sleep R2512-R100 Color:Black durable hinge that snap backIdeal 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. Product