6 Pack Red Lens Large Sleep Glasses with Blue & Green Light Blocking NR2141-R100 Magnification Strength:without magnification “Perfect as a backup pair

“Perfect as a backup pair — super convenient

Lens width about 1 5/8 inches (42mm)

Reading glasses with spring hinges

Temple length about 5 5/16 inches (135mm)

Q3: Are these lenses reusable

6 Pack Red Lens Large Sleep Glasses with Blue & Green Light Blocking NR2141-R100 Magnification Strength:without magnification “Perfect as a backup pairMetalless & 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 Dimension: Frame width about 5. 79 inches (147mm), Lens width about 2. 05 inches (52mm), Lens height about 1. 69 inches (43mm), Bridge (DBL) about 0. 71 inches