PcFbq | Frame Only & No Prescription Frame Color:Black 2-IN-1 PROTECTION: Includes 1 pair

2-IN-1 PROTECTION: Includes 1 pair of clear-lens glasses for daily office work and 1 pair of red-lens glasses for deep sleep preparation

improving visibility on the road

Lens height about 1 11/16 inches  (43mm)

Accord with BS EN ISO 12312-1:2013 and EN1836:2005+A1:2007

Frame width about 5 3/8 inches (137mm)

PcFbq | Frame Only & No Prescription Frame Color:Black 2-IN-1 PROTECTION: Includes 1 pairMetalless and Screwless Design. Acrylic Lens, plastic frame with unique flexible spring hinges. Product Dimension: Frame width about 5. 59 inches (142mm), Lens width about 1. 97 inches (50mm), Lens height about 1. 34 inches (34mm), Bridge (DBL) about 0. 75 inches (19mm), Temple length about 5. 51 inches (140mm). Enhanced Durability: Functionally the arms can be opened super wide absolutely bend back without breaking. The metalless screwless spring