Color: Black, Black-Red Frame Material: PC Style: Fashion, Classic Lens Technology: Blue Light Blocking, Progressive Multifocal Lens Material: Resin Magnification Power: Power 1.0x ~ 4.0x Type: Progressive Multifocal Reading Glasses -What are progressive multifocal reading glasses? Asymptotic multifocal glasses are the upper optical part of the lens used for far vision and the lower optical part used for near vision. The degree in the middle gradually changes, which is used for intermediate vision. Most people who wear progressive multifocal glasses need about a week of adaptation, but the adaptation period varies from person to person; they go slower when they feel dizzy. When going down stairs, lower your glasses and use the upper area. You will feel safe and comfortable. Product Size: Total Width: 137mm (5.39 inches) Temple Width: 52mm (2.05 inches) Temple Height: 42mm (1.65 inches) Bridge Width: 16mm (0.63 inches) Temple Length: 135mm (5.31 inches) Weight: 21.6g (0.76oz) Package Contents: 1 x Reading Glasses Note: 1. There is a 2-3% difference according to manual measurement. Please check the size carefully before purchasing the item. 2. Please note that slight color difference should be acceptable due to the light and screen.