Red Lens Metalless Sleeping Glasses for Nighttime Use Blue Blocking NR2142-R100 feed-color-Blue/Orange/Pink but titanium glasses are nickel-free

but titanium glasses are nickel-free and therefore less likely to cause an allergic reaction

[Patented Design] – These reading glasses feature a unique screwless

Lens height about 1 5/8 inches(41mm)

Lens height about 11/8 inches (28mm)

Overall Width: 5 5/16 inches (135mm)

Red Lens Metalless Sleeping Glasses for Nighttime Use Blue Blocking NR2142-R100 feed-color-Blue/Orange/Pink but titanium glasses are nickel-freeIdeal 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 metaljust flexible, durable hinge that snap back perfectly every time. Strong screwless hingesno 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