6 Pack Rectangle Sleeping Glasses Blue Light Blocking Red Lens R2502-R100 -1.00 operating heavy machinery

operating heavy machinery

Frame width about 5 9/16 inches (141mm)

Must buy both left and right lens powers

Durable & Practical – Ideal for hobbyists

titanium does not easily react with water or oxygen

6 Pack Rectangle Sleeping Glasses Blue Light Blocking Red Lens R2502-R100 -1.00 operating heavy machineryMetalless & 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. 53 inches (140mm), Lens width about 1. 97 inches (50mm), Lens height about 1. 38 inches (35mm), Bridge (DBL) about 0. 82 inches