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