Color: Black, Black-Red Frame Material: PC Style: Fashion, Classic Lens Technology: Blue Light Blocking, Progressive Multifocus Lens Material: Resin Magnification Strength: 1.0x ~ 4.0x Type: Progressive Multifocal Reading Glasses What are progressive multifocal reading glasses? Progressive multifocal glasses feature an upper optical zone for distance viewing and a lower optical zone for near viewing. The power gradually changes in the middle section, allowing clear vision for intermediate distances. Most wearers require approximately one week to adapt to these lenses, though adaptation time varies by individual. If dizziness occurs, move slowly. When walking downstairs, lower your head slightly and use the upper part of the lens for safer and more comfortable vision. Product Size: Total Width: 137mm (5.39inch) Frame Width: 52mm (2.05inch) Frame Height: 42mm (1.65inch) Nose Bridge Width: 16mm (0.63inch) Temples Length: 135mm (5.31inch) Weight: 21.6g (0.76oz) Package Included: 1 x Reading Glasses Note: 1. There is a 2-3% difference according to manual measurement. Please check the size carefully before you buy the item. 2. A slight color variation may occur due to lighting and screen settings.